Ok I changed my plugs again this time to ar135 one heat range up I also shortened my metering rod springs by one coil it seems to run better but it has no low end toruqe it it really sluggish off the line I guess that could be the gearing too? But my biggest issue now is the motor loads up at idle and I rev it up to clear it out and there is lots of black smoke from the exhaust (fuel) but it also keeps running after I shut the ignition off it sounds like a broken diesel running on three cylinders.