93Foxbody

Ok so i changed the plugs in my 2000 mustang gt. They were all running very lean except for a plug or two. I have a CAI, 75mm Throttlebody, Trickflow intake manifold 3.73s steeda shifter Pully kit diablo tuner. Is it time to step up the injectors? What im thinking is the injectors could be clogged up because 6 out 8 cyl were lean and im figureing im about mazed out on the stock injectors and if they are dirty ill just put new in. What size should i use? and does anybody know how to use a diable tuner? It came with car when i bought it not sure how to use it....


On another note tonight i broke a throttle return spring. Not a throttle body for a mustang it is off a F250 pickup. Is that a bad idea to have on the car or should it be ok.

uberstang1

Honestly I don't think you have enough mods to warrant larger fuel injectors/