less gear. When I ran the 4.56 gear with 28" tire I crossed the stripe at 7K rpm. Low gear set 999 got me out of the hole. Short stroke motor needs to rev. My converter flashes to 3400 and a higher stall would help with the 4.10 but that's more $$$ and I drive 50 miles to run at the track, so the converter I have is staying as is.
