Rick, are you using the black anodized Canton adapter at the block? I have put those on dozens of cobras without one
oil related engine failure. Massaging the passages may make you feel better, but 80 psi while cold, while being spun by an electric drill is normal, you probubly will get about 55 when hot. I could get 60 psi while tuning the
oil pump with a socket and speed handle.