Originally Posted by iclick

When I had the stock cams I had it set for 14.7 from 5-15% in the cruise range, which worked fine. OTOH the SE255 cams were having some trouble with 14.7 and I was getting occasional hesitation just off-idle at low-TPs, so I tried bumping it richer to 14.5 and this fixed the problem. Later on I tried going to 14.6 at 10%, which is about where the bike cruises up to about 60mph. I've had it set there for a while, but recently bumped it richer to 14.4 at 5% to get rid of some of the gurgling and minor surging I was getting in that no-load region. That didn't help the situation much but I haven't changed it and it doesn't bother me enough to richen it more. When I switch to my rich base map all this disappears, so somewhere between 13.5 and 14.4 is the no-gurgle sweet-spot, but again it isn't a big enough issue to pursue it further. It's going to do that set that lean in no-load conditions and it doesn't hurt anything.

Jamie sells the 6-6 cams and has good maps available for it with most applications, so IMO AT isn't an absolute necessity. OTOH, life doesn't roll along dictated solely by necessity. It is a nice upgrade, though, if you have a configuration that has no map already available for it. It's also nice if you're an addicted tweaker like I am, as it makes getting the AFR's you want a much more precise proposition than before.

If I can get upper-40s I think you could too, that is if you can keep your wrist out of the throttle and ride solo. If you want to run the AFRs as lean as I do in the cruise range I would advise getting an oil cooler to keep the peak OT's in control. Even if you didn't run it this lean I would still recommend a cooler, as IMO all TC engines need one.