Alright since I can seem to make up my mind I'll see what you guys say. Here's the deal I want to be able to run 10's in the quarter and have it last for awhile behind 600-650 hp. No real hwy driving but maybe once in a great while it will see it. What do you think? Also one other thing I've been thinking about if you have a TH400 with a reverse valve body how does the computer know how much timing to give per gear?