hey guys i just joined this forum. saw the thing about posting some about yourself in new member section but i cant find that part. well i recently upgraded from an 02 heritage softail to an 07 ultra with a 103 and mid range cam. i do have some questions about the bike im not sure about for starters when i first start it sometimes it will idle at like 2800 rpms then drop to normal after 20 sec or so and after it drops down. also sometimes it will make a noise like its missing or something and it gonna die real quick but it doesnt. not sure if it sounds like something you guys have heard of. any help would be appreciated

 

Sounds like a bonafide tuning issue.
Get it to a reputable tuner in your area, and they should be able to put a handle on that.
Scott