550 cubic inch bb dyno!

TT5 i went 8.779 at 153 mph, 3055 lbs running MT radial 14.5x15x33 slicks, torqueflite, 5500 stall and 4.56 gears. DA was 1600.
I am running bias 10.5x33 hoosiers now which aren't as fast. I hope to see some 8.60s. With Goodyear 2078 15x15x33 the car was slower by .012running a best of 8.88. Trap rpm will probably be close to 7500 rpm as it data logged 7350 at 8.90/150 mph.
I may go to 4.30 gears to drop the trap rpm.