Got the Tahoe running again. It bubbled a little in the overflow,after driving it pretty hard,the first time.
I bled it at the cap and drove it mildly,checked the over flow,and it was good. Then I made a few full throttle take offs,checked the overflow again,and it was not bubbling.
When I started it the first time,it would not build oil pressure. I loosened one oil filter and cranked the engine,still nothing. I ended up priming it with a drill ,but it didn't work with the oil filter tight .