i have a garrett t3, inline fuel pump, fmu, safc would 450cc dsm injectors be to big? or should i look for 310 rc? Thanks

 

you should really search as this has been covered 100's of times. no joke.
the best bet would be for you to get rid of the inline pump/fmu and use JUST the 450cc injectors and the AFC. you also won't need check-valves or a missing link for that. all info is on here somewhere, I promise.

 

nothing is too big as long as you have a controller