Rebuilt top end of engine now carb idles much higher?Please help

You did not mention degreeing the cam with either the old chain nor the new chain. That opens the door to thinking that if the two were not installed at the same ICL, then the cylinder pressure will not be the same.
A 1 degree difference can equate to 1.5 psi difference. So 4 degrees could be 6psi. If your engine only musters 130psi, on the compression test, then 6 psi equates to about a 5%pressure change. This is very significant depending on which way it went.
And it will affect the entire tune.
But then, since you didn't degree the cam, you have no proof that the cam is anywhere near to where it is supposed to be. You may even, accidentally, be off one tooth. And that will wreak havoc with the tune.