Thanks.

Are you sure you have all the plug wires going to the right places and the correct firing order for your cam?

Have you looked at cap terminals inside?
The wife’s F150 had terminals that had buildup on them that caused problems this summer.

I did all the suggestions here Wednesday. The timing is where it is supposed be and the vacuum works as it should. The advance goes to 35 BTDC at 2500 RPM. The battery was new JUN 2018???? The alternator is a 3G and works as it should.????

Bad gas will cause those issues. Also........on mine.........a dirty fuel filter REALLY makes it ak-up!
6sal6

Well this is what happens when you work on the ar then leave it for awhile and come back to it later. I started to fiddle with the carb and replace the fuel filter when I remembered that the last thing I did was to retard the timing because is goes to 40 BTDC at 2500 RPM so I timed it so it would only go to to 30 BTDC at 2500 RPM. That ended up with the initial timing at 6 ATDC. The engine didn't like that. The reason I did that is as the engine gets heat soaked it begins to ping the longer it is driven like on road trips. I took the the distributor apart to reverse the govenor but it is already on the small notch. There aren't any numbers on it to give a hint what the digress setting is.

I left the original springs in it. One heavy one light. I would think I should put in heavy springs????
I need to lower the timing about 5 degrees. How thick does the bushing need to be?
I do have a tape on the dampener that reads in 1 degree increments.