David Vizard, Uncle Tony's garage, Unity motorsport. Mission impossible Dodge 302 Head porting
If you search anything mopar related, fabo is one of the first things that comes up. I'm absolutely certain that these guys know about this forum.
Anyhow, I'm only saying what I would think about doing. The Magnum heads could easily hit the 318hp with zero modifications, and would actually be considered a stock head. I'll repeat it again, if you are having your heads ported by DAVID VIZARD, it's NOT something the AVERAGE NORMAL GUY is going to be able to afford or reproduce. If you send ANY HEADS to DV (or any reputable head porter) for porting, it's going to cost $$$. More than a set of OOTB edelbrocks. At which point, to be honest, it's a stupid *** exercise.