I have a 93 acura integra Ls race car that keeps cutting out every so often. When I start running the car past 4k it is like the fuel just stops and the rpms drop and a sec later the car kicks back it. I have changed the fuel line , injectors, gas tank, fuel filters several times, the fuel pump a few times. I just dont know what else to do. When I rev the car up setting steal not under a load it seems to rev good but the moment I take it on the track about 3 or 4 laps starts cutting out. Is there a sensor or something Im missing? Any help please the car is killing me.