Here is the thread-he said these were comp part #754 retainers-the retinaners I received are not 754's.
His claim is they work on a 921 and a 941 spring-well there's no way it works on a 921-which is what I needed it for, nor 941. So I would like my money back.
Here are the facts from the COMP CATALOGUE: http://www.compcams.com/technical/Ca...07/292-293.pdf
It's shows a part 754 for a 921 spring
and it shows part # 728 for 941 spring: http://www.compcams.com/technical/Ca...07/292-293.pdf
I only purchased these because they he said it was a part #754-a part # 754 will work on a 921 spring-the retainer.