Whats the spark plug gap for a 1985 Cabriolet?

0.70mm +/- 0.10mm or .028 in +/- .004 in Check the Emission Control Information label under the hood for your specific model. No sticker? Well, .028 - .036 will get you in the ballpark. If you buy Bosch W7DC or W7DTC spark plugs (the preferred brand), they are pre-gapped.