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    Exhaust crossover ports

    I'm doing my first port & polish job on a pair of aussie 302C heads for my 351C. I noticed that one cylinder on each head has a rectangular port connecting the exhaust valve bowl to the intake manifold. I can only guess that this is some kind of emissions reducing feature to reburn part of the...
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    Rust in trunk, what do I do, what do I do?

    The mounting flange that the tank sits on is typically rusted. I'd recommend removing the tank, which just involves removing some screws and detaching the rubber fill hose and disconnecting the fuel-level-sender wires. Then take an electric drill with a wire-brush wheel on it and clean off as...
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    1970 Mach 1 Stock Front and Rear Sway Bar Size

    My 70 Mach1 has the original sway bars: 3/4" front and 1/2" rear. However the bar size may depend on the original engine size (not sure), mine is a 351C.
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    351 2v to 4 bbl

    I agree with D. Hearne -- if the battery cable is getting hot, it means the connection where it heats up has too much resistance, meaning a bad connection. Maybe you just need to clean the battery contacts, but most likely the connection between the battery cable wires and the battery terminal...
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    *GASP*!!! Woke up and found my passenger side flooded.

    Maybe the A/C evaporator pan is leaking or the drain tube is blocked so that the condensation is dripping onto the floor instead of draining out onto the ground. Check the carpet for a wet spot after running the A/C for a while on a humid day. Also, my 96 convertible leaked rainwater really...
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    Need help! Stang will start, but dies...ROUND 2

    Make sure your gas cap is on tight. If it doesn't seal properly, the fuel pump can't pressurize the the fuel tank and that will make the engine run bad and stall. I know from experience after paying $60 to have my stang towed to the shop and $40 to replace the stupid fuel cap. Before that it...
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    1969 Fastback Full Quarter Panels

    I put one of the new '70 Dynacorn quarters on my Mach1. They're very nice quality and fit beautifully. Definitely the way to go. The only difference between them and the originals is that they don't have the little studs for attaching the back window molding clips. I used a metal punch to...
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    Dual Vacum DIzzy

    See these two links: http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1c/36/c9/0900823d801c36c9.jsp http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1c/36/e2/0900823d801c36e2.jsp
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    distributor modulator system

    It's commonly called a Dist-o-Vac, and it controls the distributor vacuum advance based on temperature and engine RPM to reduce emissions. I don't know how much it would affect performance if you disconnect it, but here's a link that shows how it should be hooked up and how it works...
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    Fuel system idea

    I think your fuel pump will suck air from the "return" side of the tank, since the return line enters the tank at the top, above the liquid level. That would produce bubbles in the line going to the engine, causing it to run very lean and hot. This would especially be a problem at startup...
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    Are new valves pre-ground at 3 angles?

    Probably a dumb question, but do new valves come pre-ground at 3 angles, or should they be touched up before installing them?
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    A request for owners of 69/70 A/C cars

    On 69/70 Mustangs with A/C there is a white plastic (actually nylon) lever on the defroster plenum that actuates the defroster vent door. These darn things are almost all broken, so the defroster doesn't work right, and nobody makes a reproduction. I'm thinking of having a few made up in a CNC...
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    Another eBay scam

    This guy (or perhaps it's a group) has been doing this for at least a year using different eBay accounts. He usually has about 4 cars for "sale" at a time, and they're always high-dollar classic cars for absurdly low prices. Apparently he steals eBay accounts from users through a phishing...
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    64 1/2 POWERSTEERING PROBLEMS

    The ball stud normally just controls the power control valve, and the power assist does most of the work of moving the drag-link, so normally the ball stud shouldn't see a lot of wear. However, when you turn the steering wheel while the engine is off, or if you try to turn while the car isn't...
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    Hotter plugs,and colder t-stat,or vise versa ?

    The heat rating on spark plugs just affects the operating temperature of the plug's electrodes and doesn't directly affect engine temperature. A "hotter" plug just doesn't transfer heat away from the electrodes to the plug's body (and hence to the heads) as quickly as a "colder" plug, so the...
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    Oil Pressure Varies, WTF?

    A drop in oil pressure over time generally indicates bearing wear. As the clearance between the bearing and crank journal increases, less back pressure is produced since the oil squirts through more easily. This is most noticeable at low revs. At higher revs the oil pump pumps more oil...
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    what vendor for quality parts?

    Most vendors buy from the same few manufacturers, and Scott Drake makes most of the common repop parts, so I've found that there isn't much variation in parts quality except when it comes to sheet metal. However you need to stick with somebody who's advice you can trust. I've used Mustangs...
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    69/70 floorpans

    I replaced the pans on my 70 Mach1 using full-length pans from Mustangs Unlimited #A107L108 and A107R108. They look very good and I don't recall if the ribbing matched exactly but it was close enough to original to satisfy me. A concourse judge would probably notice the difference, but then...
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