popatim, glad you found yours (both of them) in time.
The UIM bolts torque is 89 in lbs
The LIM bolts torque is 11 ft lbs per the '98 FSM DVD.
If he has one ready, just PM him as Bob Dillon. He'll give you the details. I know he was having difficulty getting enough "bad" UIMs to sleeve for replacements.
And congrats on the 2 additions to the extended family.
And nekote, sorry about the extra work you had to do to replace those head gaskets that weren't needed, but there'* plenty of info here for the replacement.
EDIT: My '97 FSM lists them backwards and it didn't seem right, so a couple others helped to verify correct torques using the '98 DVD.
Here'* what the '97 FSM writes, as a warning to all who have it. All pics and supporting steps are correct also, so there'* no way to know that it'* wrong, except common sense perhaps.
Pg. 6A-120, Intake Manifold Installation (Upper)
2. Install the upper intake manifold bolts.
Tighten the bolts in sequence to 15N-m (11 lb ft).
Pg. 6A-121, Intake Manifold Installation (Lower)
2. Apply thread locking compound to the bolt threads.
3. Install the lower intake manifold bolts.
Tighten the bolts in sequence to 10N-m (89 lb in).
Mike: 1997 SE w/ 183K, aka White Horse
, Gutted Airbox w/K&N, drilled 180* t-stat, tint all around, clear corners w/SilverStars, "PONTIAC" light up tail, PEMs, NGK TR55s