[lovehamr]

As a Boss 302 owner and 372ci clevor(Windsor block 4V Cleveland heads) owner I have to say that most of the Hype that you hear about the 4V heads being no good for the street is BS. If what you are looking for is a low RPM cruising engine then a stock W will do. If you want power then air flow is king and very few aftermarket W heads can stay with a stock 4V C's flow potential and the iron stock W heads are only good as boat anchors. Just as a measure, the intake side of my Clevor flows 335 cfm @ .700 and 28" of water. As to the question "How much power do you NEED" I'm afraid that I'm not much help there because I don't think one can ever have enough! LOL If your 68 Mustang runs good now, just imagine what it would be like with 1500 less pounds(as in a Cobra)! Woo Hooo!

my 2 cents, Steve