I just noticed it's been three years since I started this. I didn't really get to work on it last year though. Yes he ran a 4 speed and truthfully I will have to update later as I don't even remember what all was done. I saw where C&D ran 13.2 on a stock 69 GTO 4 speed on crappy tires. Will it run in the 12's first time down the track? No clue. That's part of the fun is it not? If it breaks, it breaks.