Racetronic Fuel Pump on a stock car

I installed a racetronics fuel pump kit when the factory pump went out in my car and lately the car feels alittle flat on power when you first get on the pedel, like alittle bog. Is the fuel pump to much for a car with no real mods, is it make it to rich down low or could the fuel presure regulator be bad?

Should not be a problem. The stock fuel pressure regulator should be able to handle that pump. As long as the system is producing the correct pressure at the rails, its not going to cause the engine to run rich or lean. Best way to find out is to put a fuel pressure gauge on it, and watch how the fuel pressure varies under various driving conditions.

thank you for the reply and help