You do realize you can do the snout without removing the SC? Although it is a good idea to do a gasket change while there depending on mileage.

High ratio rockers, headers, egr delete, plugs wires, trans pan drop and filter change along with shift kit, VC gaskets, check for other leaks (rear seal).
: )

pand oh, modular pulley while it's off (SC), even if you keep it stock sized for now.

basic mods... But prep for things to come.