I have a 1951 cranbrook with a p23, I believe. Just purchased it and saw the oil pressure gauge was broken so I got a new one. To my surprise upon installing it, the oil pressure is upwards of 65psi at idle and completely pinned when driving. What could cause this? I don't have any history on the engine other than that it was running when I got it. some things weren't installed correctly or missing though. Fuel float retainer missing, points adjusted way out, timing off, fuel pump barely pumping, valves out of adjustment,etc... Could it be a blockage? Bypass valve spring? Seems like its not a great idea to leave it that way. Thanks for any input.