wasn't there a thread on this last month? i blip just before i let the clutch out, but sitting there and revving the crap out of your engine is just stupid. I will admit, one time I saw a buddy of mine walking down the street with his back to me so I pulled in the clutch, coasted up next to him pretty quietly, then just revved the crap out of it...probably 10,000+ rpms. He almost pissed his pants...he was sure his time had come.