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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Mar 2010 Posts: 10,296 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,296 | Try watching the rockers as you increase the RPM. Not much oil flow takes place at idle. Ideally we would like to see a dribble of oil coming out of each rocker arm top hole at idle.
I don't believe it is a deal breaker if it is a bit sluggish on a few at idle, as long as plenty is coming out of all of the holes as you increase the RPM above idle.
Carl
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
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