I had a points dist. in my 91 302 & was told to put a steel gear on it which I did. There's this really nice hill on hwy. 22 when you come down to the Symcoshakedown & let your pipes rap. Mine used to, but now that I put a Duraspart dist. in it no longer will rap going down that hill. Both dist. are set up to be fully advanced at 2300 rpm. Why the difference?