[justa6]

Your car should be doing a lot better than that. First, what kind of Mile per hour are you getting in the 1/4 mile. The MPH is a good indication of what kind of power your putting out. The ET is an indicator of your launch (and other things).

Are you using slicks? Or at least a DOT drag tire. If so how are you heating them?

I've also got a TKO (Tremec). Are you power shifting it? If you aren't that is a big piece of the problem.

What does your car weigh? Is it right had drive. That could be the biggest problem (only kidding)

Anyway, you said that you had 400 HP at the rear wheels. My car had the same trans, close to the same rear ratio, and 473HP at the crank. So that should only be a tad more than yours at the back wheels and its gone high 10's with a 1.56 60' time. You certainly don't need more power (although more never hurts) to make it go at least into the low 11's.

Regards,