probably wouldn't hurt to pull the distributor and prime the oil system with a priming tool. pull the valve covers and spin the pump with a ggod drill until oil comes out of all the rockers- it may take a while. then fire it up and treat it like a brand new engine- keep the rpm's around 2k for a few minutes, and drive it nice for a few hundred miles.change the oil, and it should be good to go.
1971 Nova(looks like 69 camaro from underneath!)
355sb, vortec heads, HOT cam,T-10 tranny, 3.70 gears 16" IROC wheels