You are correct. About 2 inches of HG (Mercury)
is 1 psi. 28 inches of H2O (water column)is about 2 inches of HG. 20.5 inches H2O (what Holley flows carbs at) is 1.5 inches HG.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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