In the market to buy a transmission for my 91 GT. I have the following mods listed in my sig. below. What should I look for? I notice there's different 1 st gear ratios and so and final drives. What should I get for a daily driven street strip car that can handle launches on slicks and moderate abuse. Would Tremec be the way to go or what? 6spd or 5spd.? your help would be greatly appreciated. It needs to handle about 450-500hp at the flywheel.