I've been searching for a bit and can't find the correct compression fitting for the 3/16 copper line that feeds the head. It's the one that goes into the block at the oil distributor. The original fitting reduces down internally to about 1/16. I have a handful of the fittings that fit but do not reduce internally and the complete lines sold at Carter and the like do not include the fitting at the block, just the cap and the compression insert.

Does it even matter?

If so, any idea where to find one or what terms I should be searching?

Pics for reference.
https://flic.kr/p/2mks5jN
https://flic.kr/p/2mkvSBj
https://flic.kr/p/2mkx3E4

[EDIT] I should add that with the standard compression fitting that is not internally reduced, oil is getting to all rockers at idle and it does not appear to be over oiling.

Last edited by BLUEMEANIE; 08/31/2021 9:02 PM.