for the gov spring its not to bad just make sure to have a nice set of ball point allens if you dont wanna deal with pulling the pump which trust me you dont wanna, also make sure to index the throttle very well otherwise youll be messing around with idle and stuff for awhile. for injectors its not to hard just kinda a pain in the butt cause you gotta pull of power steering pump to pull a bracket off that i never put back on to access all the fuel lines on the back of the pump. also you need to make/purchase a injector puller. once there out you mine as well do a pop test and buy a shim kit and pop test them since the new nozzles will mess with the pressures