superman5.0

when do you know when you need to swap stock fuel injectors?

dimebag

if ur asking this right now, your stockers are fine for you

2 kwik

your giving advise

samseed101

It's a fairly simple formula. But you'll need some serious mods before worrying about that. If you're just running the basic begining mods (gears, exhaust, ud pullies, CAI, etc) then don't bother.

blackout

I just upgraded to 24lb injectors because i'm doing H/C/I which kind of makes sense since I already have the car apart and I will need them now.

Like said before, you will not need them until you have some decent mods and are making some power.

Oh and make sure to get a mass air meter calibrated for whatever injector size you get!

angcobra

There are many calcs out there to determine what injectors you need. My personal preferrence for a 5.0 is 7#/100 HP at flywheel. Per my calc 19# injectors are good to ~270 HP.