i believe the weight of your car should be addressed as well. 50lbs more on the rear end equates to a lot more parasitic loss then you think. that's 50lbs more to be turned and not pushed. big difference. i would prefer to go with a spool with that much hp but i guess it would depend on your interpretation of "streetable". i don't mind a spool on the street but i don't put that much street time on my car. i prefer more bullet proof when it comes to the track and worry about it's street manners later. it depends on what side of the coin you prefer.