Went back out… pulled the regulator and broke the lock ring loose. 1/4 turn counter clockwise and the truck now idles with reduced fuel pressure.
Will need to tweak it some more but it’s a start.

YouTube Video

Last edited by Phak1; 03/11/2024 1:34 AM.

1940 1/2-ton
Low skill and low buck build
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In the dark of night, she's a looker.