I walked right into that one. :lol: My oil pressure warning light used to come on at idle till I changed it (it was the OE sender)
What are you getting for pressure? My 67 273 has an 8lb switch (IIRC) Mine runs about 10 lbs at hot idle with 30w (higher with 40w) about 100,000 miles on last rebuild. (50 to 60 lbs at speed)
