To add to what Bill says, be sure to "chase" the threads (5/16-18) in the intake where the draw-bolt goes and blow the hole out with a good nozzle. Put a drop of oil on the threads of the bolt after you "wire wheel" it. Torque to 22 lbs. Torque the remaining bolts to 32 lbs., starting in the middle and "spiraling" your way out.
TIP: use a very thin film of RTV on the manifold-side of the o-ring to hold it in place while installing. DO NOT "load it up" with sealant.