One of many reasons I am glad Cliff is back on here giving good advice is I can back up his recommendations in a modern way. When I hook up a scan tool and drive a modern car with full electronic engine control. I watch the timing curve in real time with the factory programming. Using a typical V8 with throttle body fuel injection which is about as close to a carburetor without being one, the timing curve closely resembles what Cliff is suggesting under various loads, RPM's and conditions.
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