Well, I checked the valve gap on my other 91 Alfa Romeo spider today. Or should I say, soon to be my girfriends spider. Bought one for her that did not run as well, and restoring it too. Not as much issues as red one. Her's is white. It had a bad fuel pump. Replaced it, and car fired up. I heard a ticking noise, and sounds like a exhaust leak, but kinda also sounded like valves. Have not yet fixed exhaust leak, but thought I would check the gap on valves as well. Here is what the results were. Intake 1=.013, Intake 2=.015, Intake 3=.016, Intake 4=.014. Exhaust 1=.018, Exhaust 2=.017, Exhaust 3=.019, Exhaust 4=.017. These values are thousandths of a inch. Should I worry about intake 1 and 4? They are a little tight from the specs I have read on this site. From what I gather, on the motronic systems the gaps should be Intake .015-.018 and exhaust .017-.020 thousandths of an inch..