Brett,
You need to answer the questions asked earlier related to fuel flow and the use of Seafoam. You either have too much fuel, too little fuel, an intermittant ignition problem, a partially plugged exhaust, sticking valves etc etc etc. Some of these are highly improbable. Knocking them off one at a time has to take place in order to narrow the problem down. Your bike did run ok for the first 2 miles right? Run the Seafoam.
BTW, if you are running the bike with the intakes off, most carbs will spit a little out of the inlets.
When you cleaned out the carbs, did you strip them right down. Did you disturb the float height if you had them apart?
