96FastSilvy

i saw a thread already but im using them for a different reason. i am usin it for the drag strip and street use. i read they can give you up to 15hp, but im not sure i believe it. is this true? its on a 5.7l vortec in a 96 silverado sbsc.

billetbowtie

i would also like to know this too. and another thing , i plan on getting the zz383 crate motor as soon as money permits it, would they interchange on to that engine as well. im pretty sure they will since you have to use all your stock intake and brakets and stuff with this crate motor. am i right or what ?