Quote:
Originally Posted by SkinnyG
Curious - what is your idle vacuum reading? It is often recommended to have the power valve open at half your idle vacuum reading.
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Great question, and I have seen that formula as well, my highest steady vacuum at idle of 900 RPM is 20 inches, yes that high, so the 10.5 Power Valve makes sense, I think maybe I could use or try the 9.5 but they were sold out of that one.