I had the same problem recently. Checked the usual suspects for a missing cylinder...plug, wire, cap. I found a lot of play in the rotor, and the distributor is worn. Replacing the rotor, and adjusting the points resolved most of the problem. It still misses occasionally at idle, so I plan on replacing the distributor too. I'm guessing the accumulation of factors caused the miss. Why it occurs on #6, I can't say.

-Kevin

Last edited by Shakey61; 04/28/2019 5:56 AM.

This is what happens when you live with a house-full of women, the wife and daughters name all the cars:
1960 Impala - "Frankie" (Frank Sinatra)
1961 Apache - " 'Mater Jr." (wrecker)
1965 Corvair Monza Convertible
1967 C20 "Ol' Blue" (hidden in a log cabin for 30 years)
1972 SuperBeetle Convertible - "Juliet"
1976 SuperBeetle Convertible - "Olaf"
1988 Alfa Romeo Spider Veloce - "Romeo"