new car, tech q's

just bought a 91 maxima GXE with teh SOHC motor, was wondering a few things

-what size injectors does it come with stock? how about fuel pump capacity?
-is there an easy way to tell if it came with an LSD? i dont think the SOHC ones had it, but im not totally sure
-how hard is the DOHC swap?
-any other quirks or easy mods i should know about? i searched and found the cardomain site i forgot whos car it was but it had lots of info and ill go over it soon, but is there anything else i should know?

- "what size ... * its all there in the "Favorite Links"
- how hard is the DOHC swap? * just work but why on earth?
-... "with an LSD? * yes, do seek on this forum
- ... "lots of info and ill go over it soon * fully supported

why would i not want to do that swap though? the vg30e has 191k on it so i may be looking at a swap in teh future anyways.

Then it still has maybe 60% lifetime left... VGE is simpler thus cheaper without clacking pretty useless valve VTC system (how does one know the 7hp difference). Coilpacks dont give any benefit but swap price ... VE used to be lots pricier.

Try swapping intake system from VE if youre after more hp. (I dont know how it fits but mostly they look very similar)