Any guys running low gear sets with strokers?

589ci street wedge motor with low 1st gear in 727, SLR 11.23, 4.10's with 10x29's, 1.42 60 best@3800lbs@line, max power is only 690 from 5500-5900, traps@6200-ish, there's cars running slower 60's in the 9 7's and with lighter cars, our best is 10.30>50's.