Matt, call me sometime. I'm having some luck with mine. If you can do a Weber, you can do a Keihin! If I ain't got the answer, I work with a Harley mechanic. What's the problem, anyway?
Richen up the bottom end. Does it have a thunderslide kit or something in it? You might want to lengthen the pump stroke a little to get it to kick in a little earlier. Aside from that, back out the idle mix a quarter and see if it gets better. Tweek the timing up a degree or two, and see what happens there. Also, how would you know what a raped ape runs like?
They are around ....everywhere. Have you ever seen one?
Thats cuz they're that fast! .........
Nope, this a bone stock early Sportster Screamin' Eagle carb.
I think it may already have bigger jets. I'm gonna pull it out and look at it and work on it today.
I'm thinking I may just start lookin for a CV.