456 gears
I have a 505 hp stroker that likes locked 31 timing and runs 10.50's. I have a stock 950 hp and a 9.5 convertor that stalls at 4200. My 60's are in the 1.38-1.44 range. Maybe you have too much convertor? Where is your peak tq? I have heard that if a engine is real efficient it takes less timing.
Guitar I have cal tracs and mono leafs with a mopar drag shock. I run a 30X9 radial slick on a 8 in rim within the stock wheel well. Craig