Re: 3000 RPM, POP, then hold on ! !
I'd go a double dose (some have used half a can) and run the tank through. One note, this may loosen up a bunch of crud from your tank. Check your float and spray some carb cleaner into your carbs to help clean themafter 50 miles or so, then check again in another 50.
One other thought I had about the "rough" 3000+rpm..
Have you done an ear shave on the bike?
The hose that used to be in the right airbox that came from the carb.. make sure this is not bottomed out if it is still in the air box. Cut it at a 45 degree angle and tuck it back into place,
If the airbox has been removed.. where is the tube now? it needs to be tucked in somewhere so it gets a steadier airflow like tucked in along the gas tank, and not out in the open.
Patriot Guard Rider
2000 VN750 Sere (Serendipity)
1990 GL1500 (Ole Blue)
1986 VN750 EVie (project bike, heavy custom)
VROC # 11628 / 25000-H
ARVROC # 12 Coordinator and Crowd Control
OKVROC # 18 (H)
TNVROC # 45 (H)