T-5 trans

Beware the Camaro T-5 is turned 17 degrees to make room for the trans tunnel on those cars. They require a different shifter when use in street car because of this but on a race car you might be able to configure a work around with a open cockpit. The Ford version has a different bolt pattern but bells can be made or adaptors bought. The Camaro 6 cyl. version has a better 1+2 shift ratio's but has an 14 spline input shaft that requires a custom plate. Major companies can make custom clutches if you ask them. all have 1:1 fourth gear ratios.
The world Class T-5 are considered stronger than than the previous model years in drag racing but for roundy rounds they are a bit heavy and the the rotating weight might put it at a disadvantage when compared to a stock three speed unless you can lathe the gears down. If you have all the parts or can fab up stuff I say go for because racing is all about doing something a little different than everyone else to find advantages.

It does sit straight up, lizardracing is right about the 14 splines. I have a S-10 t-5 sitting in my garage. I'd be running it if rules allow, it is waaay lighter than a iron saginaw. Not sure about rotating mass though, I know 5th gear could be removed with a snap ring.