Try adding Lucas HD Oil Stabilizer. Makes a big differance in mine. Mine "ticked" when I bought it, so on the first oil change I subsituted a quart of Lucas HD Oil Stabilizer...no more "tick".

You're on the right track with the stumble. Keep adding the injector cleaner.

Jeff!
_________________________
RNT Knives... Go where you want, Take what you need!

Original Registration, NOV '07
Pre-crash post count - 396

"...the Earth will continue turnning, even when justice dies." (Revy Two Hand, Black Lagoon)