318 horsepower

Porting heads, without a flow bench to compare your apples to each other, is pointless. There was an article in one of the car mags a few years back that gave detailed instructions on how to build a simple flow bench for doing porting work. I will try to see if I can find the article and post up what mag it was in, so anyone who want's to know can find it and build one for themselves, then you will be able to TRULY port a set of heads, anything less and you might just as well be throwin money in the fireplace. IMO.