Thanks everyone for the feedback but Jegs called to verify order and I was so confused I chickened out on the vortec and changed my order to a Lo5 engine that came stock in the old burb. It will be much cheaper and faster to get going again. I know it is not close to as good an engine but it has been sufficient for years.
I may try some tuning on it and get some experience and at a later date try the vortec and sell the lo5