i was gonna go with stock injectors for now, but my friends bro has some extra 550's, you think these would be too big or could i get away with it if i have a lower ratio fmu? what ratio fmu should i go with with stock injectors? 10:1? thanks

-Chris

**EDIT** BLAH! i cant figure out if i should just go with a regular vortec fmu or the Sfmu. im trying to save money so do you think it is worth the extra $70 for the sfmu? ive been searching but i cant decide. thanks