rde-19 up date

[seahorse44]

Sorry to start a new thread but couldnt get search to work to find my old one. Wheni let my motor idle , it will start missing on one cylinder sometimes . not always. If I just barely nudge the throttle forward it will start hittin again. It happens around 850 rpm . other wise the motor is perfect. maybe a plug ? theyhave 10 hours on them . J6C gapped at .030.
new coils , points wres , upper and lower crank seals , rebuilt carb with new float ,
rebuilt fuel pump (was 2 line added pump) condensers , got my gas mileage perfect . less than 3 gallon per hour wot. 1958 35 hp . thanks