Two more easy quick things, check ignition timing and then check for vacuum leaks. Make sure no vacuum lines off or broken, you can also (with caution) take a propane torch and with the engine running direct the unlit torch around the intake, base of the throttle body or carb along with all other areas leaks could develop. If the engine speeds up you've found you leak.

Good Luck,
RonR


RonR


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5