Ok so the Nova P5 is running great in my buggy with the 063 pipe. The motor gets up to about 230 after running it hard for awhile. The car does not die, the idle sounds fine but I am wondering if it is too lean or rich. After I stop the car (while motor is still running) It seems the motor is still revving very high, it takes a few sec's for it to come down to the slow idle sound. is this ok? Do I need to adjust idle or my low end adjustment