Torque specs for 2003 Chevy Silverado 5.3L intake manifold?

Torque specs for the Chev. 3.1 intake manifolds are as follows:

Lower Intake Manifold

Center bolts

Step 1 - 62 in-lbs

Step 2 - 115 in-lbs

Corner bolts

Step 1 - 115 in-lbs

Step 2 - 18 Ft-lbs

Upper Intake Manifold

Bolts & Studs - 18 Ft-lbs

Specs are taken from Hayes Repair Manual: Chevrolet: Lumina, Monte Carlo, & Impala (FWD) 1995 thru 2005