You have spent a lot of time and money on this engine already. Spend a little bit more money. Take your valves and the head to a reputable machine shop and let them set everything up for you. In my opinion, lapping valves should be relegated for $100 engines so that starving farmers can get the last bit of hay in the barn, not for a new engine build. Piece of mind is priceless. Carl
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission