[hugger6933]

That motor probably has the peanut port heads they are called that because the intake runner volume is about the size of a peanut compared to the older big block heads Also the compression is gonna be way low. Like 8:1 I have seen them with 7.8:1. But I have had several trucks with the bigblock that had the TBI injection and I unhooked the single wire inside the cab by the ECM and ran up the timing and WOKE up that truck in every occasion. Now I know you dont have any of that stuff just said that to say this the trucks were so detuned that a little tinkering can even wake up the boringest of the 454's. Now back to your question I would get a 750 Edelbrock[ 1407 I think??] and find a intake like a performer or one step above that and you will be happy