318 combo's

needsaresto said

.I figure they left at least 20-30 h.p on the table with thier combo.Add in porting and a cam change,lighter rods,engine balancing and blueprinting...who knows?

Click to expand...

Yeah, that second article is a ported magnum head combo that made 477 hp.

I wish they would post the links to the subsequent articles in those on-line writeups.