Yeah, that's probably pushing the limits of a stock T5. But there's guys that have taken stock T5s in the 10s. If your not aggressive with the shifting, they can hold quite a bit of power. You can also rebuild them with aftermarket internals that will easily handle your power. I don't know what's involved with the 3550 swap, but a good T5 rebuild is going to be cheaper. Just my opinion.
306 with all bolt ons, yada yada yada, letter cam, ported E7's, T5 swap, full exhaust, 3:55's, 2" drop, and the worst paint you'll ever see or feel.
Dyno'd 300/316, 2745lbs-track scale
Best ET………12.4@108, 1.66 60ft on 8" ET Drags.