Hi,
I'm back... After a few days of looking things over. A check of the rear main showed evidence of leakage. I decided to pull the motor for a good inspection. You guys were right about reduing the bottom end. The first thing I found was residue of the timing chain in the pan and oil pump screen. I pulled a main cap and saw evidence of foreign material. So minimum is Crank and if I go that far, I might as well do the whole thing.

siw234:
Could you provide more information on your rebuild? How much work did you have done on your block? Linebore, etc.

Thanks guys.