To me a 13.1 is impressive on street tires!!! great accomplishment man!I dunno about you, but I'd take a big gain in average torque over a gain in peak horsepower anyday. That's kinda odd, mine "felt" like it lost a lot of power down low. But ass dyno's are misleading. My car still feels slow to me, though it really isn't. I mean, it ran 13.1 on street tires so it isn't "slow", but it feels slow to me. I must have a Mustang brand ass dyno or something. I just hope it doesn't feel slow anymore after I supercharge it next year.