[Yamariv]

Thank you guys for all the advice to switch to Vortec but I'm going to have to stick with and work with what I've already have. Yes fuel injection would be way better but I don't have that budget and I want to keep the truck the way it came, with an old school engine.

Wouldn't these heads breathe a little better if the machine shop puts a little bit larger valves in? Are there decent quality affordable aluminum heads that might be a better fit? I've checked Summit and I have about 700 different head options..I have no clue how to choose.