I think you are making a mistake with the cam. You have gone to all the trouble to machine your block, all the parts, fresh bearings and gaskets, gone through the head, all new stuff except for the cam, you put it together, clean clean clean. You have gone this far, go a little further. Have the cam freshened up. Schneider cams in San Diego can re grind your cam or sell you a new one if they have a core. Stock grind or performance, your choice. They did the cam that is in the new motor. Use New lifters, or have your originals re machined to new. Not all that expensive to do, but could get real expensive If the old cam fails in the new motor. Freshen the cam up and break in the motor as above. From there, drive it with the break in oil for 100 miles or so, then fresh oil, bradpenn or equivelent. Oil filter, I took a pass this time. My block is early style with the small lines. Not a particularly efficient system. So for this motor, I did not install one. Just regular oil changes. The link, I hope, lol, is my motor just after we broke it in and let it idle a bit. Open headers. Now have a couple of hundred miles on it, no issues, runs great, so will yours.
http://youtu.be/wm2XejDSqXg