Initial timing set @ 30*. Engine seems happy?

timing first , then carb adjustment .after your timing is all squared away, then you can play with the carburetor. if you bounce back and forth , its like a dog chasing his tail
if it is running good , then why mess with it?
I don't even own a timing light
if it is not "pinging" when you are in the throttle, then you are not too advanced
what exactly is the "running hot" temperature? I think that is a separate cooling issue myself from what you are telling us