i just bought the polished weiand manifold.. and im going to get it ported and put on.. and probably getting stage 2 heads pretty soon as well... how much of a power increase do you think i will see from the manifold? and how much from heads? im guessing around 20-25 from the man. and around 40 from the heads..rwhp..

 

Well seeing you don't have a cam, i seriously doubt you will pick up 40 from the heads, expecially because it is an auto also. But from the heads and manifold, possibally 40, I've heard mixed reviews about this manifold.

 

your numbers are a little off, i'd say ~25-30rwhp from both the intake and heads.