I went to the track today to try and get this thing into the 11's on the stock clutch before I yank it out. (2) 11.80's, (2)11.9's and one 12.1. MPH was down a little (119-120 vs. 120-122) and I think the stock clutch is giving it up. I'm starting to smell it at the end of the track and 7700rpm through the gates is faster than 120 . This was on a GT3076 and 93 octane with boost at 22psi. Best 1/8 was a 7.6 @ 95

 

stock clutch is great if driven correctly...

 

Don't forget that your trap speed is just an average speed between the last two boxes, so you can't directly relate it to RPM.

 

Stock clutch is sweet... kinda. Mine lasted 52,000 miles somehow. My car is weird.