Inspect Mechanical Advance

Inspect Vacuum Advance

Check it to make sure there is no Vacuum Leak.

See Main Article: Vacuum Leaks

Push the lever, then put your finger on the pipe. It should stay. Replace (or plug hose) if it the lever instantly pops back.

Or use the gun method

Adjust your 4-cylinder points to 49-55 degrees

See Main Article: Ignition Timing