What RPM was the 650 seen at? And was it at peak torque or peak horse power?
469 CID @ 100% VE and 5500 RPM's is pumping 746 CFM of air through it.
IMO How far the engine keeps making good power past peak HP is what I'd be looking at. Then CFM accordingly.
With 500hp/577tq it doen't appear to have been over carbureted.
Clay
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