Cylinder head dyno shoot out

You edited your message,
X heads are valuable for reasons other than making power.
I do that alot. My original thought wasn't worth the interaction. I think I can deduce what's going on here in regard to "stock heads" and decided to bow out.

However if I were to speculate, I'd guess the interest lies in random sets of modded Speedmaster heads and a set of Edelbrocks to mix it up, am I close? :thumbsup: