i checked with my brother who is a a.s.e. certified mechanic. it is 11 ft-lbs be sure to chase the threads with a tap and die set, and use locktite. to much torque will ruin the gasket, and not enough will cause a manifold leak.
It is on the back of the intake manifold.
start with center bolts and work your way out in a circular patternaltenating from side to side
.035 FT. LBS.
30f
11 ft lbs
That's easy you can find those in the [http://www.themotorbookstore.com/chevpic.html Repair Manaul You Have].
35 Ft. Lbs
35 ft. lbs.
35 ft. lbs.
30 ft/lbs on a cast iron intake.
It is between the upper and lower intake manifold. The gasket is an o-ring type.
Need to check the 4 corners on the intake manifold. It is common for the intake to leak engine coolant.