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Old 02-11-2014, 02:49 PM
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cbmontgo cbmontgo is offline
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Join Date: Dec 2007
Location: Texas
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Originally Posted by SteveH View Post
At 7K feet elevation, 15. maybe 16-16.5 if the barometric pressure is really high (on a nice day). This is on my '78 2F with decent compression. The lower the elevation, the higher the vacuum reading.
That's what I was thinking. I am running at 13.5-14" on one of my 2Fs and was told that I may have an intake manifold leak that is big enough to necesitate additional carb tuning. I also live close to 7,000'. I would think that if a well tuned 2F pulled 20" hg at sea level, then 13-14" at 7,000' is not necessarily indicative of a significant vacuum leak?
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