Mike - I'm thinking of buying a meter match for my 74 Duster. How did you calibrate it? The tank has a cutout for the spare tire in the top, so the meter match has to account for this. I can't see how you could calibrate it correctly. Could you post detailed meter match instructions, including how to make it read "full" when the tank is full, "1/2" when the tank is half full, and "Empty" when it's just about empty? Thanks.