Originally Posted by gofaster87

Im not yet familiar with the Z heads/Vvel yet but if you're going to do cams you might as well do head work. Working the flow of the heads is the secret to hp on na engines. Im surprised this isnt discussed more often in this forum. I know people have mentioned that the vvel tuning hasnt been cracked yet. I do not understand why this isnt a priority for the shops with the resources. Ive head work done on most of my cars including those with forced induction and its a night and day difference. Some Ive sourced out and some work I did myself.