Engine Grocery Getter cam recommendation

limp

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The summit carb is based off the the old Autolite 4100 line.... A very dependable set it and forget it carb, by what I have read.. Who is making it for Summit? I can only assume.......
 
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limp

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In the 600cfm range, I've had Holley, Summit, and Edelbrock carburetors, and for my money, the Edelbrock 1406 (electric choke 600cfm) is the clear winner for a street 302 with mild mods.

The basic differences are as such:

The Edelbrock is 99% a "set it and forget it" solution, and is as close as you'll get to 100% without converting to EFI. It forgives novice carb tuners, has excellent street manners and drivability right out of the box when sized right. It's only drawback is that fuel will evaporate right out of the bowls if the car isn't driven frequently, something the other two are less prone to.

Holley is for the tinkerer or the one who wants maximum performance. Imminently tuneable and adjustable with a plethora of parts to make it do whatever you want, the Holley can do things the Edelbrock simply won't do with an experienced wrench-turner working on it. The biggest downside to the Holley is that they're far more sensitive to atmospheric changes, and you will find yourself making adjustments at least twice a year.

Summit's carburetor is a cheap and decent solution, but I wasn't crazy about it. Setting it up is easy enough, but it required partial disassembly of the carburetor to do so, something a Holley or Edelbrock won't require unless you make a jet change. The one I bought had some quality issues as well, and I ended up making a trip to the parts store for brass fittings to replace the leaky parts included with the carb. While it was easy to tune and ran well, I kept thinking "I should've spent the extra few dollars on an Edelbrock" the whole time.
Appreciate the advise and experience...
This is the one I was thinking of mostly due to the 500 cfm rating and a copy of the 4100 series..

1619868472766.png
 
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7991LXnSHO

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500cfm will run a 302 very nicely all day with snappy throttle response and good fuel economy, but 600cfm is usually the "happy place" for a mildly modded 302. If overall performance at the top end of the rpm range isn't a concern, the 500 will probably make you happy.

The formula has always suggested 450-550 cfm for any 5.0L engine I've run, but the old hot rodder's wisdom of multiplying the CID by 2 for your ideal CFM has worked better for me. That said, I've also ignored both and run a smaller carburetor when that's all I've had or was after better fuel economy. (I've even run a Rochester 2G on a big block when gas was $4/gallon).

The Summit carb is a copy of a copy, or to be more accurate, an adaptation of an adaptation. It's based on the Holley 4010 which was based on the Autolite 4100.

The Summit works well enough, and if you're going for something that looks like it belongs on a Ford it's the automatic winner over the generic-looking Holley 4160 family or the Mopar-like Edelbrock.
For what looks right on a Ford -
Holley’s have been on Fords since 1903 and on other brand factory muscle cars. Autolite and Holley carbs often shares basic designs. (Like the 4100/4010 example.)
The Edelbrock is an improved AFB.
I am not sure it matters a lot what’s under a low profile air breather from a visual point as you cannot see much anyway.
 

7991LXnSHO

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This is true, but the street carbs Holley sells these days visually look kind of generic.

It could be because I've seen that design on virtually everything out there.
Agreed. I also think it’s interesting Holley now owns Demon and QFT that were updating their designs.
 

limp

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I haven't purchased anything yet so you never know, I might buy the 600......

Now what about cams?? LOL
 

deathb4dismount

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Unless you go custom, run the stock HO cam. For a grocery getter light to light it can't be beat. Save some money and think about a set of used twisted wedge heads. Not sure it gets much better than that for a grocery getter combo.
 

limp

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It's a roller block, so I'd honestly recommend an E cam or B cam. It's gonna sound great, play nice with the carb, give you a modest bump in power, and combined with the carb will have an old-school sound and vibe.
When I have looked at these seems they don't come on till after 3000 rpm.....
 

limp

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Oct 4, 2020
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Unless you go custom, run the stock HO cam. For a grocery getter light to light it can't be beat. Save some money and think about a set of used twisted wedge heads. Not sure it gets much better than that for a grocery getter combo.
I am going to use the GT40 P heads that came on the engine I bought, unless they are in bad shape... Haven't got to them yet..
HO cam, any links to one of these?
 

limp

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Agreed. I also think it’s interesting Holley now owns Demon and QFT that were updating their designs.
The big sometimes keep getting bigger and we lose some of the small guys we like....
 

deathb4dismount

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I am going to use the GT40 P heads that came on the engine I bought, unless they are in bad shape... Haven't got to them yet..
HO cam, any links to one of these?

I am going to use the GT40 P heads that came on the engine I bought, unless they are in bad shape... Haven't got to them yet..
HO cam, any links to one of these?

I don't think you can get a new one, but someone on the forums will probably give one away. Save $ there, save $ on springs, sell the gt40 P heads, your getting close to used tfs 170s. Just a thought.
 

limp

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I was on the LMR website looking at the Alphabet cams and the Comp cams...
The "E" cam comes on at 2500 RPM, while two of the comp cams come in at 1500... I want to think the comp cams are more to what I want.. Of course the comp cams are out of stock until June.....
Anyone with any experience with these cams??
 

limp

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Oct 4, 2020
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It's a roller block, so I'd honestly recommend an E cam or B cam. It's gonna sound great, play nice with the carb, give you a modest bump in power, and combined with the carb will have an old-school sound and vibe.
I am starting to like this idea more....
 

7991LXnSHO

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Match the cam’s power band to the power band of the intake.

if you are not taking it the heads to a machine shop with lift specs in hand for the cam, before you get springs I hope you like coil bind or valve float. I’ve been trying to save you money, but I’m tagging out since you do not really want sound advice.
Maybe you’ll get lucky with a parts number guess, maybe parts will hit and it will get exciting.
(@CarMichael Angelo)
 
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limp

wrap a little cheese around it and its a done
Oct 4, 2020
608
282
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66
Florida
Match the cam’s power band to the power band of the intake.

if you are not taking it the heads to a machine shop with lift specs in hand for the cam, before you get springs I hope you like coil bind or valve float. I’ve been trying to save you money, but I’m tagging out since you do not really want sound advice.
Maybe you’ll get lucky with a parts number guess, maybe parts will hit and it will get exciting.
(@CarMichael Angelo)
I am looking for a cam so I can start to assemble my short block.. Can we talk about the heads at a later date?? I appreciate everybody's comments here, but if you want to go pee in your cheerios, that is your choice.....
 

limp

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Oct 4, 2020
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The E cam was everyone's go-to cam in the late 90s and early 00s to make a mostly stock 5.0 fox sound amazing, bump the power up enough to feel it, and not screw up fuel economy or drivability. We're talking pure bolt-in cars that were usually even running the stock intake. Take a listen here:

View: https://youtu.be/cNWv5WpamPc


Even though technology passed the alphabet cams by in performance over the years, they are still a great value with a distinct sound for a street car where all out performance isn't the goal and drivability is important.

Is this what a B or E cam sounds/idles like? While I plan on having quiet mufflers, I am not sure I want my car to have that much "lopeyness"...
 
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7991LXnSHO

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Is this what a B or E cam sounds/idles like? While I plan on having quiet mufflers, I am not sure I want my car to have that much "lopeyness"...
It sent me a notice even though I unsubscribed. Please listen.
Yes, these fun letter cams have a noticeable idle. The 268H does, too. The EX series should. That’s why Comp recommended a bit smaller model from your description. And no, :nono:you should not consider the heads later. The heads, rockers, springs, lifters, pistons and pushrods are all part of what cam you can run. It’s a package deal, even when bought separately.
 

7991LXnSHO

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Matt, I am concerned that he’s going to need different springs with even a stock 5.0 cam than are on the GT-40P heads. He best be checking about coil bind and valve float with anything more.
I have built the engine he describes, but with E-7 heads. It will be fun and not obnoxious with the right combo.
Les
 

limp

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Oct 4, 2020
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You're not wrong, but I think you're overthinking this if I'm understanding Limo's wants and needs from this engine (and I may not be).

You're not wrong, but I think you're overthinking this if I'm understanding Limo's wants and needs from this engine (and I may not be).
I think I might have started it with my custom cam suggestion, but no, this IS getting overthought... If I put the stock Explorer cam back in it I would probably be happy.. Sounds like the isky might be closer to what I want, I will check it out.
 

limp

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Oct 4, 2020
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Florida
Matt, I am concerned that he’s going to need different springs with even a stock 5.0 cam than are on the GT-40P heads. He best be checking about coil bind and valve float with anything more.
I have built the engine he describes, but with E-7 heads. It will be fun and not obnoxious with the right combo.
Les
I am looking at the beehive springs from Alex's parts, new pushrods, and the Lunati roller tip rockers... I have not purchased these items yet, before having the heads checked out by the machine shop.. right now I am getting my short block paid for ...