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Old 01-21-2012, 06:57 PM   #4
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Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
Smile Re: Vacuum advance issues

The easiest and perhaps the cheapest way to beat this is to get another 2bbl carb with ported vacuum on it and swap it out to try it.
You can probably pick up a reasonable one for a good price off of Ebay or equivalent.....lots of Rochester stuff on there.
Good Luck
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1966 Chevy 1/2 ton (Florida- Red/white)
1972 Chevy 1/2 ton (California- Blue/white)
2005 Chevy Silverado HD2500/Duramax
2000 Dodge Ram 1500
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