My distributor has the cam plate stamped "534". I believe that indicates 34* of centrifugal advance. Rather than a hit and miss approach playing with the pin bushing to slot ratio, are there any sources for these plates. I have found chevy plates as low as "514". Thanks

 

The points distributors use a bushing in the slot, so would the degree rating be the for the plate with no bushing? As in, that would be the maximum amount and using various bushings would provide less advance?

 

There is a rubber bushing on there, cant say if its factory or not. I have some metal bushings from summit I will play around with tonight. I also got a moroso bushing that mics at .265 the rubber bushing (no compression) mics at about .245 so not much difference. Good point on if the rating is with or without bushing.