What # should I be shooting for at idle. Its running at 10.7 at idle now. Out of gear reved up gets to 15.3 Anyone know? ( got a new gauge)

 

You don't really need anything more than stoichiometric. So anything around 14.5 will work. If you have a hole to cover up with an off idle stumble you can richen it up a bit more.
Also if you have big cams in the engine they want to read rich.