Hey! Tony here
I have some questions about Buttler Perfomance 428 stroker kits.
I have a 1967 GTO with a 1968 428 Engine that i have with. 0.30 over boar
I was woundering if i can buy the 428 stroker kit from butlerperformance and overboar the cylinders to 0.35 so the boar ends up in...