Can get a new distributor vacuum advance module?

[timk225]

I'm working on my 1973 Duster (electronic ignition) and I'm taking apart the distributor to clean and regrease it all. Even though it seems to work when I unplug and reconnect the vacuum line and watch the timing with a timing light, I want to replace the vacuum advance module, because it is probably original, and if it hasn't started leaking already, it will with more regular use. Anyone know where I can find one? The numbers on the advance arm appear to say "8.5 R", so I think that is 17 degrees at the crankshaft of spark advance.

I was on the Advance Auto Parts website and saw a replacement Carquest /6 distributor with a cap and rotor for $83, is that my easiest option or something to avoid?

What would be a good amount of total advance to use on a stock to near stock 225 with 1 bbl Holley and a 904 automatic? Years ago I ran around 4-6 degrees initial advance, and I forget what my total timing numbers were.

 

[RustyRatRod]

@halifaxhops can help you with that. Also, don't use thick grease, as it will gum it up and make it sticky.

 

[halifaxhops]

I have them if needed NORS, NOS or rebuilt. Where to set the initial is in the FSM for a start if it is worked. Here is the issue with parts store distributors, they are made well usually, just the curve is set up for a large span of years and applications, not any specific car. So it might run great or not but will make it run at a minimum. When greasing the shaft and advance weight pivots oil only. Synthetic grease on the rest. Also ensure the shaft oil seal is in the housing around the shaft bushing.

 

[volaredon]

They're all over eBay, last looked about $20. All different brands. From niehoff to borg warner to KEM and standard blue streak. All good brands and most I see are brand new from back before all the buyouts and "chinese-if-i-cation" happened.