Here is Greg Dupree's web site that Rick referenced for purchasing the composite distributor gear:
http://www.tritecmotorsports.com/Car...utor_Gears.htm
I talked to Greg yesterday about the durability of this gear with a wet sump oiling system. He said that if I record the mileage and inspect the gear after a year of service and am not happy with how it looks, the company would refund my money! I ordered one for $75 plus shipping :-)
The modified PET material that this gear is made out of is used in a few GM applications as well. They have played with the amount of carbon loading from when they first started making these to make them harder without it getting too brittle.