Recently road in town Christmas parade, in my 63 convert with 390, toward the end of the route oil pressure light started coming on when idle and would go off when put in neutral or moving in forward. Engine was probably a little warmer then usual but not over heating. Never have had this problem before. Today I was gonna change oil to a heavier wt, after jacking up the car, I noticed someone must of used the oil pan to jack up the car and it is actually dented in some. Could this be obstructing the intake of the oil pump? Should I drop oil pan and straighten it out, change oil pressure sending gauge, install aftermarket oil pressure gauges? I will definitely be running a oil pressure test on it, but was wondering if I should worry about the oil pan first?