Feuling cams are an odd animal. They have high LSA and way too much exhaust duration. They might work if you set the CCP at around 220 but I'd pass. I suspect that the cams were designed by a motor simulator and not a real person. I've got simulator that tends to have cams that way. They may work well on motors with induvial runners but I've yet to see a dyno run that was impressive.

 

Don't do what I did. I tried to put together a S&S build and really thought I'd have some power. After putting all this money into the engine, I was so disappointed I turned to the Forums and pretty much got crucified. My build started before S&S had the 107" and 110" kits out. I chose the 106" big bore kit with the 89cc heads. At that point, cams didn't really matter, I was running less than 10:1 compressions and like described by djl, it was a TURD. It made some power with the S&S 585 cams, but for the money, I felt it should have been more. If I had it to do over, I would have gone with a 107" kit from one of these great builders here and push 120 hp/tq with my factory cylinders and heads reworked. For the money, reliability, and overall fit and finish, do a build for you.
As far as cams, the 585's cam pack a punch as long as you have enough compression. It's NOT good in a low compression engine, no low end.

I went with Kirby at Vee-Twin Racing in FL for the recent updates. Good luck to you.