Pro Shifted 5-speed...
Cant beat slamming gears down the track, and these trannies are used in some fast track cars. If you havent driven one, you dont know what your missing...
Unless your a hardcore racer looking to win brackets or championships, I think the stick will be much more fun. Personally Id rather Drive the car down the track, then go for the ride, even if its a tenth or so slower. Something about stabbing the clutch, hitting the next gear and getting compliments on my driving that I would never trade for that extra edge going down the track...
In the end its up to you, but personally, you wont see this guy ever running an auto car! If it comes to it, Ill just run a Real Street 9 second car and have my fun!