Sounds like you are good to go, good troubleshooting tip!!

It must have been a concern at the time because of the outside oilers folks would install? This adds a level of concern, maybe. Guess you took care of that! Was it the non-detergent oils back then??

What oil weight do you run? 10W-30 is the manual rec for some engines tho it sounds like a lotta guys are running 15-40 in the Y blocks with good results. Measuring oil pressure would help here too.

Lately everyone is spooled up about zinc and EP additives that may or may not be included in the latest oils and possible damage to cams or flat tappet solid lifter engines. So... that's something else to be worried about if you want! Use a good quality, heavy duty oil and filter and the Y blocks seem to oil OK.

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