I use a short wrench and just snug them with wrist action. Maybe 12 Ft Lbs. Spray a new gasket on both sides with WD40. Use one drop of anti seize oil on the threads.
http://www.vanpeltsales.com/FH_web/f...ecs32-48V8.htm Ditto on the never-seez and liberally slather grease on all surfaces. Jack E/NJ
I don't know the answer for that specific applpication but most factory made new aluminum intakes are in the 15-18 ft lbs range. Jay