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#21
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Kenth's statement about vacuum advance at 4500RPM.
He implies that there would be 20 degrees of vacuum advance applied at that engine speed. He also states that vacuum advance starts at 8-10 in/hg vacuum. I believe that the only way to get that kind of vacuum at 4500 RPM is either: a. no-load (holding 4500 RPM with the clutch pushed in, why do this?) b. no-load (accelerating past 4500 RPM , then closing the throttle) In my opinion, maintaining 4500 RPM under load (especially in high gear) will require enough throttle opening that the 8-10 in/hg required to begin vacuum advance will never be reached.
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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic. |
#22
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Quote:
Simple as that. FWIW |
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