Andrews 37 cams have a nice idle. but there is this as well:
https://www.google.com/url?sa=t&rct=...08194040,d.cGU

 

My 96" CARBED Dyna idles around 800/850, sounds fantastic and runs like a stripped ape. I'm running SE 255 cams, open intake & V&H slip-ons. 83,000 miles and better than the stock EFI crap.