Nice find, real data! I didn't even bother to do a search on Holdener, figured that he wouldn't have bothered with some of the more obscure old school stuff like the Super Ram. Should have known better, he's a testing maniac. Pretty soon he'll be testing ported Model T cylinder heads
Yeah, that torque loss isn't too bad, in fact on a road course shifting at 6000 with a T56 the Stealth would actually be better. So I retract my advice above, you know what you're doing. Still wouldn't mess around with that old ECU, though