Below are the required torques from the manual. Divide lb in by 12 for lb ft.
If one insists on torquing everything, suggest downloading a torque values chart from google images and using the standard values for that size thread.
IMO using a torque wrench where not needed is overkill -
exception: captive nuts such as front shocks and anti-roll bar mounts.
FWIW, the manifold studs are 3/8"-24
Wrench sizes and their bolt sizes:
7/16" - 1/4"
1/2" - 5/16"
9/16" - 3/8"
5/8" - 7/16"