It took me awhile, but I have an address. Apparently they don't have an website. I saw a cap on eBay the current bid was for $40. I wonder why Jegs or one of the other performance shops don't sell these? As a matter of fact why didn't GM think of this 30 years ago????

Crossfire Manufacturing
116-B N. Mercer Ave.
Sharpsville, PA 16150
(800) 458-3478