i just checked my spark plugs and i am currently running a 55 shot and there was little silverish specs on the electrode tip...it was a little brownish tho..more like browish silverish...kind of how the spark plug is suppose to be but then theres these damn silverish specs.not alot..just a lil...enough to bug me. does this mean i'm running lean? maybe i should try using the 65 shot fuel jet with the 55 shot nitrous jet? but will using a higher fuel jet cause me to run slower???