[dana44]

Welcome to the forum, sounds like you have quite the project. As far as the GM distributor goes, one issue you have to verify to start with is clearance. The 413 has the distributor in the front of the engine and the 360 is in the rear, so firewalls tend to get in the way. Now, just for a little information, it is not a simple dropping the distributor into the place of another, it is an aftermarket setup of swapping and machining the two distributors together. GM module on its baseplate to Mopar shaft and mounting point. There are other ways around this, such as Pertronics. They have figured a way around the giant distributor cap and coil the size of a baby's head at the back of the engine and attached the components to the outside of the stock case or some such thing and have heard good things about the setup.

 

[dana44]

I think it is a cut and affix the whole thing and using the GM cap and everything. I have seen them, too, and it is humongous. I think the Pertronics uses the GM guts attached to the outside but not sure how they work inside.