[dad911]

What is your use? Pure steet/track/both?

I did it, in a pure track car, about 8 years ago. Used the 6 speed that came with the engine, but it was a mistake, took alot to make it fit, and the gearing was not great for the track. Sold the car soon after.

Frankly, I wouldn't consider a conversion now. With the price of 964s and 993 so low, you can buy a 964, lighten it, and have a better suspension & brakes also.