Chrys race Dist?

[Mopower71]

Is there a site or does anybody know the spec on the mechanical advance springs in this thing. It is a mechanical adv. only with the tach drive. Tag on the side says CHRYSLER 4120701 under that it has 4 7
Just wondering if I should pull the heavier green sprin and just run the light one.
That's what I did to my stock elec. dist.

 

[AdamR]

Do you have the cast iron one or the aluminum dist ? I have a cast one I run it with the springs that came in it. The advance come in real quick on it.

 

[Mopower71]

It appears to be the aluminum one. I might just leave it for now, and see how it acts with the carb set up better