Originally Posted by 2fox
The.transmission converter is.a.3800.stall speed.with.3.50 gearrs.with.Detroit locked.for.the.street .hopen for.some.low.10's.at least.got.32x17.50x15 mt et street dot slicks
I may be wrong, but that's an awful lot of stall for a blown BBC, IMHO. But that's really not your question. Best thing I could suggest is get the tune to a safe point and start track testing to dial it in unless you can buy some dyno time.
Quarter mile trap speed and ET along w/the other vehicle specs (mainly weight) is as good an indicator of real world HP as most anything. You have enough motor to run your numbers- the question comes down to chassis set up and traction.