View single post by Brett Gibson JH5 20497
 Posted: 04-21-2011 01:15 pm
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Brett Gibson JH5 20497


Joined: 03-17-2005
Location: Hilton, New York USA
Posts: 779
Sounds like someone plumbed the carbs to pull in the engine and valve cover oil vapors, usally most poeple would just tap the back of the air cleaner, if your not using it you should plug it off at the carb. Also Dell's most often do not use a distributor that has a working vacuum advance, if yours does I'd plug that off as well.

Thier are usally only two taps for vacuum on the engine one for the brake booster and the other for a distributor, (discused) if your booster is leaking that could be an issue as well, try plugging that off to see if it make any improvement.

Plus are the carbs tuned so that they are pulling the same amount of air flow equally.