i was thinking, how much more hp/tq would those aluminum l98 vette heads give me if i swaped out my stock iron l98 heads with the vette heads? thanks guys

 

i believe there will be clearence problems with them, thats why tyhe irocs didnt use them to begin with, same with the vette exhaust manifolds if i recall correctly. whats the hp diff from stock equal year 350tpis vette/z28 would prolly be a little less than the difference