what heads

[Tapper]

I have a 350 sbc 2blt, summit flat top .040 pistions will yeild 9.6.1 with 64cc head, crane 268 energizer, 3.42 gear, performer intake eldy 750, headers, th350 with 2000 stall

My head choices are

14102187 86-91 swirl ports 1.84-150

3998993 1.72-1.50

3998991 1.72-1.50


This will be in a 71 chevelle all steel except hood, and street driven

Thanks

[durty]

the 187s are 305 swirl port, probably 58cc combustion chamber, the other two listed are 72+cc chambers, i personally wouldnt use any of them, almost certain the smog head 882s will work better than what you have listed, find some others

do you already have the intake? personally, i would look for a set of vortec heads and intake, probably get the best performance outta stock parts with vortecs opposed to what you have listed

[zziggy]

Buy some Vortec heads and a summit vortec intake.
You gain power and efficiency. That means fuel economy.
Keep the valve lift under .470" with stock vortec heads.
Sell your other heads on craigslist, or 12th street scrap.
Buy and use the Felpro # 1094 head gaskets and the premium intake gaskets.
Sell the 750 carb on here or craigslist.
Buy a good Q-jet or a 600 cfm carb.

Race 355's with a 650 Holley can run low 11's, you don't need a 750 on a PU truck.