Distributor Mechanical Advance

TrailBeast said
The standard Mopar electronic is capable of approx. 25 degrees mechanical average from what I have seen, and they do have different top shafts that determine that.
They are marked on the bottom side of the part with the slots for the weights.
This is why they need to be limited to use a higher initial timing.

Great info. Thanks! I wonder how many shafts with different length slots mopar made???

kiss said
Get the slot plate from FBO ignition to make it easy on yourself. Assuming it's a street car here, if you don't limit the mechanical advance, you'll have to run less initial and your car will have trouble getting out of it's own way. If you run enough initial with a stock distributor you will ping, and ping often!

I'm fully aware of that plate and how to limit advance to run more initial. I was simply asking how much advance the slots in stock distributors allow.