Thank you all for your help and guidance. I can now finish the story and hopefully prevent someone from the same problem.
As you have all read in thread, I went from a solid lifter to hydraulic lifters when I did a cam swap. The hydraulic lifters never filled with
oil even after an hour break in. Suggestion was that the lifter gallery was plugged when the engine was built for solid lifters. CLOSE - but no cigar.
The real problem is that I have a 1964 427 Low Riser block. This block (and those up until '68, I believe) was designed from the beginning to be a solid lifter block and nothing else. The lifter galleries were not plugged. They were never drilled out!!!
Oh, the things that we learn the hard way. I have since torn down the engine again, sent the cam back to be reground for solid lifters and then I'll build it up again. Hopefully, this time it will be successful and I can get the awesome Weber power that I expect (and now deserve!!)
Thanks again to all that have tried to help. I really appreciate the thoughts. If anyone needs help, I am getting very good at 427 FE teardowns.
Corey