What bar and ripping chain do I need for a G660 for milling?

I can't read that

 

I described how to tune it properly earlier in a thread. Don’t read need a tach but you can use one if you want, what I described before is how to set up a non stratto saw out of the wood and if you leave it a bit rich like I described it will be good to mill with. Personally I wouldn’t set to the spec rpm with a tach for milling because it should be tuned richer for that long of cuts.

 

Can't disagree with this one bit. Me personally I would have that thing as rich as I can get it without it running like a bag of poop.
Might even richen up the low side a bit and raise the idle to compensate for the richer mixture so it gets a little extra help lubrication wise after the cut.