i have a 400 big block and simply removed the head to have a machine shop to extract a broken exhaust stud from the head and i have reassembled the head as of now .i original removed the rocker arm with the shaft all at once ..everything was marked and labeled and need to know what is the torque foot lbs if required or just snugged tight i have a book on these motors but it doesn't say much on this part it says to torque the head at 70 lbs.thanks

25 foot on rocker shaft

I would suggest snugging the bolts down by hand till one of them no matter which it is just starts to get barely tight then checking the distances between the underside of the shaft and the 5 saddles & slightly adj (the bolts) till the spaces are equal then standing on one side of the car tighten the center bolt EXACTLY 1/4 turn then the bolt to the right (of center) 1/4 turn then the bolt to the left of center 1/4 turn then the bolt far right the same then the bolt far left the same then back to the center bolt & 1/4 turn & repeat till they are all snugged. Make sure to turn them only that amt (1/4 turn) even the LOOSE ones (no more, no less). This makes the shaft draw down evenly no matter which lobes are bringing tension. A piece of welding rod or coat hanger keeps the p rods in line as you're torquing them down. Get em all down till the last one in the order is snug then torque them to the above listed spec