Im having issue with my g60 just want to try and get some idea's to what it can be. Ive checked everything but continues to do it. i have BBM stage 4 kit with 62mm pulley. when i put it in first seems good WOT shift to second and feels like i hit a wall then starts to pull again. also does it in 3 gear like the power cuts in and out at high RPMs. Feed Back would help.