i have an obd 1 gsr swap and need to know how to test the distributor. im getting spark and the car starts without problems. runs fine, doesnt have a noticeable miss but im assuming with my smog results it is a possible culprit for a rich condition. any knowledge will help. fyi kragen, oreily, pep boys, and auto zone in my area does not test them.. i have a multimeter but need direction on what settings etc, thanks in advance

 

All the tests you need can be found in a diagram in the FAQs sticky (igniter unit input tests).

 

Did you run a compression test?