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post #1 of (permalink) Old 10-28-1999, 04:13 PM
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low intake vacuume reading

My 77 dodge powerwagon has a 360 with a holly 2bbl carb. When I hook up a vacuume guage it only reads about 14 to 15 hg. Why could this be? I replaced the intake gaskets and rebuilt the carb but it's the same.
On my trailduster with a 4bbl it reads over 18.

Any Ideas or is this just how the 2bbls are set up?

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