olds307 and 403 said:Good choice they build them all the time, they have a good reputation.
My choice would be the 200R4. It's correct for your car, has better gears than a 700R4 and if built properly will easily handle that power level. Extreme Automatics of CK performance are both good choices. Don't use your local trans shop. I learned the hard way and had mine apart 4 times before getting it right.