Since I mainly bracket race and my car is a drag only car. I want to go to a auto. I have heard a lot about going c4 but they don't last long. Ive heard go turbo400 but they are heavy and not as efficient. I can't seem to find anything about a powerglide with a Modular motor. I don't think the powerglide will be as fun to drive but will be more consistant. I also fear that a glide willl make the car a turd. I'm thinking a least a 5500 stall converter but what size converter do I need? 9.5" or 8" or what? Please help me out. Thanks,