Hands-on experience is always welcome. I'm wondering if the governor was an attempt to keep all the pieces of the engine in one place in fleet applications where less-than thoughtful drivers had a tendency to plant their right foot on the floor and leave it there all day? The old V6's were torque monsters that didn't like getting wound up tight. They definitely don't do small block V8 stuff and stay together for long. At 4000 RPM with 100% volumetric efficiency (impossible) that 305 would be flowing just over 400 CFM. The 500 CFM carb will let it wind up into parts-scattering speed in a heartbeat, especially in the lower gears. It's just too tempting for a driver who doesn't have to buy engine rebuilding parts to keep his foot down instead of shifting at the proper time.

It would be interesting to see comparison dyno runs with both carbs.
Jerry

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