Stock Q jet iron intake, marine Q jet iron intake. 050 solid flat tappet and a 268H on a 106LSA and 268H on a 112 LSA with same intake closing as the 106LSA cam. My current 350 in the 57 chevy has had 76cc-72cc 64cc- 58cc and 54 cc heads on it it has had the 268H on a 110LSA the 270h 280H a herbert. If you want max 6000 rpm then go big and try to make it hook up. the 350 shifted at 6900 and the 383 shifted at 6700. Those manifolds are just not built for flowing air.īut 6000 rpm was not the limit. do the same manifolds on the 383 and it totally kills the upper RPM capability. I know because I built just that for FIL and we raced often.Ĭhoke the 350 with exhaust manifolds and upper power does not seem to get hurt too much. Say 76cc head on the 383 and 64cc on the 350 run a 214-224 on a 112 LSA on the 383 and the 224-224 On a 110 lsa for the 350 SBC and it will be almost dead even race. I have built the 383 stroker and if you stick a bit more compression and a step larger cam into a 350 it will almost match it in a drag race.
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