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What is wrong with your current advance ?

I think I posted in another thread , a stock 750 advance is 10.5 or 11 on the arm , I have to check , I recently bought an NOS one for my 750 distributor. Also note the mechanical advance in a stock 750 is something like 31 degrees , I actually changed it on on the one I have to one that is less.

The 383- 2 bbl might actually be a better performing unit

The advance I have on the distributor right now is what came with the reman. 4 years ago but I kept my 747 dist. housing that came with the car. And I have welded up the slots to give me 22-23 degrees of mech. and with my 16-17 initial I'm at 38-39 mech. I have now decided to use this for my pertronix setup and the advance is not holding vacuum and it is only about a 7 and I need a 9 so I can get the advance at cruising speeds somwewhere around 56-57 like I had with the Mopar elect. ignition before. It does run a few degrees cooler. Thanks,



What is wrong with the vac can on the electronic distributor ? It will swap into the other distributor, you can also swap parts back and forth, I turned an MP electronic into a points distributor .