i have a 89 trans am with a t56 and 3.73s and a few suspension mods. 350 stock bore w/ flat tops( 4 valve releifs) lt1 intake conversion with tpi '165 computer. i went 13.4 @ 99mph 1.82 60ft. my best 60ft was 1.7xx but missed a shift.

i wanna go 11s so i'm replacing my lil' hydraulic roller cam 212/218 @.050 .488/.488 with the COMP CAM XR288HR its like .236/242 @.050 .520/540 + my 1.6 RR. And am also ditchin the EFI, going with an air gap intake and a 750 DP

My question is what cc would i benefit the best from 60cc or 58cc?? the heads i'm interested in are aluminum 64cc that can be milled down to 54cc, and will support a valve lift of up to .600

 

you're definitely going to want more compression with a bigger cam, but this really isn't much of an Advanced question...

 

And two cc's isn't even worth the worry one way or another.