You'll have no problem getting an 11.99 out of it with traction. As far as guessing HP 500 and 500 ish.Flywheel numbers,not rear wheel. Some dyno's may give a better number and if it was dyno'd for a magazine it would add some nice HP. Sounds like a nice combo for what you want to do. With the correct converter and well tuned it could run well below what your looking for.