sry guys, holley systemax?

[jawsgt]

is the kit worth it or can u piece a better heads intake cam combo together for less. as of rite now ide like to by spring time be running high 12's if possible with a h/c/i setup. i'll be saving my penny's for a 347 stroker over spring time. wut does a h/c/i 347 run on average? low 12's high 11's?

 

[super302]

I've heard good stuff about it, but it seems very very few people are actually using it.
I'm pretty sure it is meant for higher RPM applications, but not 100% sure.

You might want to try out one of the trickflow top end kits

 

[nmcgrawj]

The holley shines in upper rpms....not really a low in the rpms torque monster. It is even better on blown applications.

But with an intake like that and a smaller stroke motor(302) you just need a good cam to make it all work.

 

[Killercanary]

That kit will work great though down the road with the 347. Its a good kit. My dad has it on his '91Gt and with just the kit and the normal bolt-ons he was running 12.6 at 107mph. He then had the heads and intake ported, new standard bore pistons installed (for PTV clearance), a custom FTI cam, and the heads were milled. He is now putting down 346rwhp/338rwtq and has run 11.8 at 117mph so far, and that is at 3350lbs.

EDIT- this is with a 302, not a 347.

 

[super302]

That kit will work great though down the road with the 347. Its a good kit. My dad has it on his '91Gt and with just the kit and the normal bolt-ons he was running 12.6 at 107mph. He then had the heads and intake ported, new standard bore pistons installed (for PTV clearance), a custom FTI cam, and the heads were milled. He is now putting down 346rwhp/338rwtq and has run 11.8 at 117mph so far, and that is at 3350lbs.

he has a 302 correct??

 

[nmcgrawj]

i didnt even see you were gonna run a 347. If thats the case then the holley will do fine. I heard the heads and intake were great and the cam was alright. Pauls dads car is a perfect example and thats still a 302 im pretty sure.

 

[Killercanary]

he has a 302 correct??

Yes he does. He bought a new stock block and reinstalled his crank and rods along with a set of standard bore SRP pistons and a main stud girdle. The combo is now a perfect match for a 347 cubic inch stroker... he won't have to upgrade anything except maybe the exhaust.

If he can maintain the HP/cube he has now he should have a 400rwhp 347 on his hands.

 

[Zero Signal]

I think those Holley heads though are really more of a nitrous head with that low intake/exhuast flow differential. If you were to go with the nitrous and the cam for it, you'd have the perfect head.

 

[illwood]

That kit will work great though down the road with the 347. Its a good kit. My dad has it on his '91Gt and with just the kit and the normal bolt-ons he was running 12.6 at 107mph. He then had the heads and intake ported, new standard bore pistons installed (for PTV clearance), a custom FTI cam, and the heads were milled. He is now putting down 346rwhp/338rwtq and has run 11.8 at 117mph so far, and that is at 3350lbs.

EDIT- this is with a 302, not a 347.

Paul, once again you give me faith on running a 302/306cid car with h/c/i and the proper tune (and driver) getting to the 11s.

 

[jawsgt]

hell yea mayb i'll look into gettin it now. that'll be close to wut my trans am ran which wasnt to bad, 12.5@112