Funny you should mention turning the governor up.
I took the governor oil line off at the first carb, and removed the carbs. Then later I was looking at the line, and it looked like something was stuck in it, turned out to be a 3/16" flat head aluminum rivet, a perfect cap for blocking off the line, it is clamped in place when the line is re installed in the fitting, you could never tell it was there from the outside.

I just about have a head off to inspect the cylinders....

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-