Diagnostics

[Mitch//pa]

I use this style spark tester and the Renners corner carb bowl level tools.

With these two tools you can determine if you have a spark or a fuel issue.

The spark tester should have a very fast bright rythmetic flash when inline of the coil wire. If the flash is dull or erratic (not ryhthmetic.) that should throw a flag..
Bad condensers, plate wires or wireless plate issues, dirty / misadjusted points are common.

The float level tester can be used with the engine running... if the level goes down in the sight tube then you know the fuel bowl is emptying out.. (fuel issue)

I have driven the car with both of these items in place for intermittent issues.

Another easy thing to try when you feel there is a fuel issue is remove the wiper vacuum line off the intake... then use a little carb cleaner with a straw to go into the fitting on the intake. Give it a tiny shot of juice, if the engine picks up and seems better then your correcting for a lean fuel condition