Sure sounds like the trigger points. Have you removed and cleaned them?

Run a points file through them lightly and spray it down with carb cleaner. Add a little cam lube on the leading edge of the rubbing blocks. I don't know of anyway to adjust these but if it runs better order a new set from our benefactors ($150). If the plastic covers for each point are missing they will get oily fast.

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Darryl, Hill
2005 SL55 AMG Kleemanized
1984 500 SEC
1967 W113 California Coupe
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