sat night, during take off, the RPM was around 4000 when i let go of the clutch & i floored the gas, then noticed that the rpm hit 7k while the car is not moving, noticing that the clutch is slipping. i had a racing clutch before, & after it was meesed up pouring REDLINE tranny fluid, my mechanic put the regular sachs clutch in there. The car has too much power, i know that, but was caused the cltuch slippage, i have noticed that i have a hard time spinning tires now ever since the cluthc change, the racing one was perfect, but don't know where to get one? what is my problem?