IMO i wouldnt change anything. Standard head, standard cams, standard bottom end
are you running a 200 or 205 block? if you want more power later on maybe long stud the block
if you're pulling the head off you may as well do the bottom end; that way you know it will be OK
head wise; i would just to the guides and seals and give it a general clean up. Stick it back on with a grp a head gasket
injector wise go with a set of siemens Blacks, they come in commonly 55lb, 72lb or 83lb size - i run a stage 3 2wd with 55lb injectors. they are a newer injector which are less aggresive & have a better spary pattern