Is it spinning? 60’ is soft. 4:10 might help a bunch. Mine is a low gearset 904, but I run a 26” tire with 4:10’s, with a 9.5” ptc converter that slips 3-4% at the stripe. If flashes to 3500 rpm. Crosses at 6500-6700 rpm using the same crank. I have 1000’s of runs on it and dragweek and 60,000 street miles. It has been balanced to 1/2 a gram by a real old, very picky guy. Oh, with that hp in a sorted out combo you with be in roll bar territory. Low 11’s
I didn’t feel any spin, honestly it seemed to be dead hooking. The track was very well preped because they had their Friday heads up series the night before. I think the converter is holding me back, it seems to start pushing through the brakes ( I’m foot braking it) around 2000-2200 rpm. I had my revlimiter set at 6300, plan to bump that to 6500 or high next time out, it was either starting to bounce off of it or float valves around the 1000-1100 ft mark.
