I have the carbed 3100 running in the 86 GT now. Not finished but it moves and drives. Biggest surprise is how nice the clutch works. I used a stock pressure plate and a puck type spring center disc. These are avaliable from multiple suppliers, but are clearly all made in the same place. Prices are all over the place, I paid $77.00 on Ebay I think. Best thing about it is that it releases totally, no drag at all, push the clutch in and you can put it in any gear with one finger, lots different than with the old stock clutch and disc. It engauges smoothe with no chatter, I have driven it and put it up and down on car ramps, just a nice crisp engaugement and release. I thin anyone doing a stock to moderately modified build should consider this, it is very nice. The puck type disc holds about 25% to 30% more torque than a standard organic disc will, so it is also an improvement in that area also. Larry