Our super hi-flow SB Chevy heads - flow bench results.

In this, episode 62 part 4, DV really takes a hi-tech look at the flow figures our Ultra Pro 9 degree heads achieve on the flow bench. As he has stated so often flow #'s alone are at best short of even half the story. Additionally he goes on to show that you can acquire the tech know-how of a winning pro-stock head porter just by adopting the use of the IOP head porting program. Everyone from a complete novice to a seasoned pro-stock head porter can learn for this video - guaranteed!