My peak tq is 309lbs at 3800RPM. What stall should I go with? I was thinking a 3,000 or 3,200rpm converter. She puts down 293lbs at 3,000rpm and 299lbs at 3,200rpm. From 3,400-5,000RPM she is over 300lbs tq. I know you want the converter to be close to your peak tq but I also want her to still be drivable. I will be also going with a vortech supercharger in about a year.