I've had my intake and tune on for alittle over a week now. I have a C&L Street, and am running the canned Diablosport 91 Octane tune. This weekend, I took my car to a secluded area to just have some fun. I was pulling hard in second gear and above 5500rpm I thought I heard a strange sound. I'm having trouble remembering the sound, but I think it was like a ratcheting sound, may have been just normal valvetrain noise but I'm not sure. I'm not sure if it was normal or if it was detonation. I always run 93 Octane, and I figure that the C&L tune is rather conservative to prevent detonation. Does anybody have any sound clips/video that I can hear to see if it was detonation. Also, is there anything I can check as far as datalogging on my diablo to see if anything is wrong?