I think it can handle up to 500 horses. It also comes with a 1.5 or 2 bar(cant remember) MAP sensor for supercharging or turbocharging. Injectors are four 62lbs/hr so I think thats more than enough for a street car. It would be interested to see one of these setups sitting on top of a supercharged motor. Crank that supercharged bad boy up and go with feathering throttle.