I steped into the new world of injection, i got a killer deal on a victor 5.0 system, tb.injectors..every piece from the tank to the front...it has 30 or 32 pound injectors...im new to this so please hang with me(been carb for to long) my motor is a 347. with some nice stuff, solid roller cam..etc...i want to run low 11's or high 10's what injector size is needed for a n/a motor....i have the tranny and suspenion and rear to handle a 10 sec pass

 

you can find out what injectors you need by azquiring some information. you are going to need to know your brake specific fuel consumption, and your horsepower level. from there it is just a matter of calculating the proper injector size. chances are you aren't going to be able to go out and look under your hood to find that info, you'll have to estimate.

my suggestion is to go with approx 40lb injectors. the serious question is, did you get a speed density systme or a mass air system? if you got the speed density system, you will need to purchase the mass air conversion. summit sells it for about $500. if yo already have the mass air system, you will need to have your mass air meter calibrated to the injectors you use, or just purchase a pro-m unit that is rated for said injectors. when you get all of that together, the engine should run. to make it run it's best (most performance), you will need some form of tuning capability. the cheapest way is to use a piggyback tuner like the tweecer or the anderson ford motorsport pms. the tweecer requires a laptop for in car tuning, the pms does not. i understand the tweecer is pretty dificult to learn how to use, but also quite powerful. i don't know much about the pms just yet.

good luck. i am thinking about putting the efi back in my car, too. i just need the intake, injectors, and correct mass air meter. oh yeah, and the damned tuner.