Yet another "what will it run".
Well, 3.91's proved to be a mistake. 60' times suffered, and the best I could muster was a 12.6 e.t. The MSD also didn't help, even though it fixed the above 5,000 rpm miss, as the cam is on it's face well before 6,000. Shifting at 6,000 slowed it down to 12.8. Best Mph was 107.17. I think my converter is way too loose for the cam, and I'm spending most of the run past peak power. I'll try 4.30 gears, and a .528 solid cam next year.