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post #1 of 2 (permalink) Old 01-26-08, 08:32 PM Thread Starter
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Question 351 Carby Problems - LPG

I have a 1976 F350. She has a IMPCO 300A LPG system on a Holley. I am having some problems with the carby settings. Can anyone help with original settings for the IMPCO?

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post #2 of 2 (permalink) Old 04-10-09, 05:00 AM
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Re: 351 Carby Problems - LPG

what is the issue with the carby?
Is it a duel fuel unit of straight gas?

If it is your impco system giving you grief depending upon its age and mounting it could be a number of things like;

-Bi product blockage of the inlet diaphragm (this is a thick sticky oily compound)
-Cracks on the diaphragm (allowing air to pass)
-Vacuum leak (a gasket may be broken)

or if it is carby side (if duel fuel) it may be a collapsed fuel float (this will case flooding)

There is a few more things it may be but more information would be needed including a picture of its mounting.
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