Originally Posted by Z06 eater
What cc aluminum heads would b best for my 89 5.0
70mm turbo kit
255 fuel pump
75mm throttle body
42# injectors edelbrock torquer 2 upper and lower intake
Usually you want a larger CC open chambered head for forced induction engines.
They give you more room to stuff your fuel/air mixture into.
Contact AFR on their website and let them choose, they have the experience to recommend what is best for your combination.