His 565 has 970hp. His reaction times are getting more consistent as he gets used to the car, but they're slow on a .4 pro tree..in the .040-.050 range. Full tree isn't a problem, but runs 1.060-1.070 in the box to keep them decent.
With the old slipyoke, it'd roll quite a bit. In fact, he put a line lock on it to prevent it. It's wired into the box and releases with the trans brake. With the new slipyoke, very little.....we tried unhooking the line lock, but it didn't seem to help rt's much.
Johnny