52 3100 with a 216, starts and runs like a new , doesnt smoke at all. I have to add a qt every 50 miles, I use non detergent 30W. some small drips on the drive way but nothing huge, I have the side push rod cover off, not to much grime, tomorrow it get's a compression check and a cyl leak down check,Im thinking oil rings but who know, maybe I move up to 40w for the summer
