Jim,
I have to admit that I'm a bolt-on guy. I worked on my high school hot rods--62 Falcon with a 144 2 spd auto---major mods chrome air cleaner, wire wheel covers, set of buckets and console from a big ole Buick I found in the junk yard
66 Mustang 289---Put a four barrel manifold on that one with a Holley double pumper. After the bog it roared pretty good.
Between those cars and now---sensible cars for a married Air Force lifer. You can't go TDY and leave your family to drive the "project car". Changed oil, did tune-ups, changed the ignition module on a 87 Tempo once.
Now I'm "retired" and I'm right in the middle of my mid-life crisis. So a 68 Mustang with a 200 in-line seemed the logical choice.
Bottom line--I'm learning with every post, every chapter read, every question answered. It makes sense to me to change the bearings if I have the head off to change the cam and bearings come in the cam kit I'm looking at buying. But as David say's it's the details that get you. There is no reason to rebuild the bottom end as a newly rebuilt motor was put in by the PO. They must have done a good job because it runs good has good power compression is 160 or so in each cylinder and it doesn't burn oil. Not real sure what the oil pressure is but the guage is almost to the center. In the Falcon of yore it only cleared the bottom line. It also dumped the five quarts I put in out PDQ when I changed oil without ensuring my gasket from the old filter came off with the old filter.
So I'm doing the cam change because I want to smoke the tire's----ala Doug----and I guess I'm leaving the cam bearings alone. How's that sound to the forum.
Whew--that's a long winded way to say---cause I didn't know any better.
Bob