Running rough

[Mitch//pa]

Timing doesn't change on it's own. It changes after someone messes with it, so I (almost) never check timing for an engine problem.

The first thing is to determine if the problem is spark, or is it fuel related.

A proper diagnosis is in order as Tom mentioned preferably before throwing parts at it...
Is your dist fully stock? Good condenser? Lots of variables now

 

[H. L. Chauvin]

In the end Joe ..... after looking back ...... with a Model A, rest assure that it will be something overlooked that was so very simple.

Just take your time and don't give up.

 

[3511*]

Check the ammeter connections. Most replacement ammeters are junk as the terminals are steel instead of brass. The problem is the connection inside the ammeter as a bit of corrosion causes a voltage drop. This has fooled some of the best mechanics on the planet.Best of luck.