Same speedo, just a little higher calibration of the head, shouldn't be any differance in the trans gears. I'm of the belief that it was just sales hype because there taint no way one of these could be driven at 80 or 90 mph. with the gear that was in them.
They also changed the temp gauges from 212 to 220 but I think that was for a practicle reason since they started using a 4lb cap.
Denny G


Denny G
Sandwich, IL