O.K., I have read several posts about this topic but still have not figured out what is wrong with bike. Here is the background. 2001 Dyna with Big Bore kit. Owned the bike for 2 years and it has run great. After a trip to the mountains and about 300 miles oil started puking from the air cleaner, so much oil I thought I blew the motor up. Pulled over had it towed home. Here is what has been done since. Checked oil level (not overfilled), replaced umbrella valves and the oil sponges that lie underneath, new oil pump and yes its properly alligned. A couple of notes. About 60 miles prior to this happening I was stuck in traffic for about an hour and barely moving. Could not shut bike down cause earler in day my starter went out (not a good day). Bike did not seem to get unusually hot but its got me thinking. Anyway, got through the traffic and 60 miles later it started puking. Only happens at 65 plus MPH. Just had a new oil pump put in thinking it was the culprit. Now I am blowing the oil dipstick out of the engine. Any Ideas?? This is driving me crazy. Thanks for any ideas whatsoever.