It won`t hurt to re-torque the head.
The engine should be ran at varying rpm throughout the drives you take it on.
The first 283 I rebuilt in highschool smoked for a long time, not much but some. I ran the engine hard for about three years. I stopped in to a store to get something to drink and I was thinking I should check my oil,,,,,
I started talking to a real nice looking sweetheart and forgot all about the oil. About three miles or so out of town (115mph) I heard a faint rattle noise. Looked at the oil gauge and it was at "ZERO"

I stopped, turned around and headed back to town for oil but the damage was done
