New heads/intake/rear end

It's also bang for the buck. I don't know how much Mike has to spend on heads and/or head work, but for what he has right now and what they can become performance wise, it is cheaper than purchaseing Edelbrock heads and then porting them.

You can point to flow numbers being higher via someones ported hands and lighter in weight, , but there not the end all and the difference in flow numbers and LBS. of weight is small potatos.

True, if you keep adding up the small potato's up, you'll get somewhere. And that would be an excellent direction to go.