Classic over carburetion problem?

@Bret Tschacher good post. I agree with it except the part that a “timing light will not tell you”. You can use a timing light to verify rotor/cap terminal alignment (phasing). Take a used old cap and drill a big hole in it adjacent to the number one tower. Shoot the timing light at it with the engine running and you will see where the rotor is firing. FYI MSD makes an adjustable rotor for their distributors and it’s worth it’s weight in gold when phasing is out.