recurving distributor

Are those numbers on those FBO plates cam degrees or crank degrees?

Judging from the examples on the website, crank degrees...........

http://www.4secondsflat.com/Mopar Mechanical timing limiter plate.htm

A partial quote:

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No more! Figure out the amount of mechanical timing you need, drop in the plate and your done!

The laser etched numbers on the disc tell you the amount of mechanical timing so for instance...

If you want 18 degrees of initial timing you set the plate on the 16* slot 18+16= 34* total

If you want 24 degrees of initial timing you set the plate on the 10* slot 24 +10= 34* total

If you want to lock down the distributor with NO Mechanical timing at all then just drop the plate over the 0 round hole.
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