Important if you run D-H/S or SA

[David Lee]

Originally Posted by ron mattson

This is a D-H/sa thread!

This is about a manifold that people say never came with that style manifold. There are people i would assume that are running blocks that never came with that combo. So how much hp are they getting from able to run a style block that never came in that engine. And because of this how much farther under the index can they run and get on the top half of the ladder