i have a 91 rs. my question is will an LB9 (z28) intake manifold bolt right up to an LO3 (rs)? because the blocks are the same 305 5.0L etc. im guessing i will have to change the fuel delivery and heads as well? To my understanding; i could be wrong, but the only mechanical differences are intake, heads, fuel delivery and cam correct? All info is much appreciated.