Recently purchased a 66 VIP with a 318 Poly and appears to have 26k original. Was told by the seller that it has an oil pan leak. Upon further investigation, the leak is at the oil filter(NAPA Gold)to plate on block connection. The plate doesn't appear warped. The double sided threaded bolt is tight. I've read that the oil pressure can be to high for the filter and to drill more holes in the plate? Any help is greatly appreciated. Thanks!