It's a simple one cable to engage P-N-R-D Once in drive you are just controlling a solenoid bank and the lock up torque converter. The LS in this build was just over stock so in the 325-350hp range. It started life as a 300hp truck engine. We didn't dyno or anything. The stock 300m was in the 250-260hp range. Longevity has everything to do with how you drive it, weight of the finished car and traction. Heavy build weight, a lot of traction, and drag racing starts will surely spell disaster. Full throttle after you're moving along versus a stand-still drag racing kind of start is very different on a drivetrain. To my knowledge I may be the only one that tried it successfully. A guy on the forum built the adaptor for me.