Originally Posted by ethn_bert
My friend has a chevelle with a 454 w/ factory style flat top pistons and 781 heads. He runs an Isky 275 roller with an edelbrock performer. He runs mid 12s NA when he can get it to hook. He has 3.55 gears w/ a th350. That setup is potent! You should have no problem with your setup.
mine will be a 496 (I haven't ordered pistons yet) with a XE 274 H, 1.72:1 rockers on big valve 781s and a Eddy RPM Air Gap intake
i'm still trying to see whats the lowest CR, I can reasonably get away with