Power, weight and, SLR also are a big factors here. Mine has a 36"ladder bar, Koni doubles, 130lb spring, 4.10, fresh 10.5x31 M/T bias, 2.45 1st, 3350lbs, aprox 900hp. Best 1.240. Upgraded to Afco Big Gun, 120lb spring, 4.30. Still chasing the set up. Now been 1.261 best on 120 pass tires. These are off the foot brake. Both of these numbers were at local tracks with no special prep.
Doug

Clay city wheelie.jpg
Last edited by dvw; 10/21/20 11:48 AM.