http://www.mustang50magazine.com/sho...g/viewall.html

 

The 12th paragraph isn't totally correct. The wide lobe separation angle by itself isn't hurting the upper-RPM power. It can correctly be argued that the lack of overlap hurts headers' tendency to extend the useful RPM range, but the problem is the lack of exhaust duration, or rather, the poor exhaust port flow for the better fix, and the long-runner intake manifold. The wide LSA delays the intake closing, and that alone extends the RPM range, even with a short-duration cam. The L69 was the first evidence, then the '90s LT1. Those 2 cams had less overlap than this, and less duration. But the lack of duration was what limited their top-end.

 

And from the Mopar camp: http://www.moparmusclemagazine.com/t...t/viewall.html Applied to a 305, you'd need a loose 12" 2500-stall and a 3.73:1 at the minimum, and you'd need flat-top pistons.