We've been looking for other transmission options for the Berkeley salt flat racer we have. I came uppon the idea of using a T5, but swaping the 5th gear set so it isn't OD, preferably it would split 3rd and 4th and be somewhat closer to 4th. I know that's likely a custom pair of gears, but with only 120 CID to play with I'm not particularly worried about hurting a T5 behind that engine. Aside from the cost (to have gears custom made), and a funky shift pattern, what issues would anyone see with doing that? I know the engagement dog would likely be the minimum "minor" diameter of the drive gear, but i'm not looking for much below direct (1.14 or closer), and I don't believe I will have the extra power to expend driving an overdrive, even a T5.