Quote:
If you have a full flow oil filter, maybe the one fitted to the valve cover, the paper element will exert enough flow resistance to show on a gauge fitted to the aforementioned ( in posts 2 and 3 above) pipe hole in the block, about 15 or 20 psi with cold oil and about 4 psi when hot.
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Thanks for that bit of info, I was wondering if or how much a full flow oil filter would affect the oil pressure in a Model A engine.