My b18 runs really good but for some reason the idle surges. We messed with the vacuum lines but still it didn't fix it. Any suggestions. Also does anyone have a act stage 3 clutch in there car? I think it just keeps stretching the cable for the transmission so it won't engage the clutch so I can shift into gear. Would switching the pressure plate to a stock one reduce pedal effort and strane on the peddle assembly and the cable. It is a puck clutch.