how many spark plugs 4 or 6? stock injector sizes?
 

I thought that some people had said 4, but in the manual it looks like it says 3 leading and 3 trailing? Is this correct? Also, are the stock injector sizes 550cc*2 primary and 850cc*2 secondary?

Your manual has a BIG misprint in the number of plugs, but the injector sizes are correct.

We have 2 leading and 2 trailing...............unless you have a 3 rotor.

so it said that in all the manuals? Or am I just reading it incorrectly?

I don't know how you are reading it but there are only 4 plugs for a two rotor...two per rotor, a leading and a trailing.