Part of this depends on weather your setup is dry or wet. With a wet kit you don't depend on the maf and injectors as much as a dry kit. You pump is more likely to give out (with a wet kit) before your injectors.

If you were to upgrade i would go a little higher than 24's personally.

 

So if i go with 24# injectors what else do i need to do to accomidate for them i dont need a bigger fuel pump do i? and how do i recalibrate the MAF?

 

you can correct the maf with some tuning sofware, not just the handheld. You can tune the car and check duty cycle of the pump, if its too high then you would need to ugrade it. Just depends on what the duty cycle is, idk what a stock pump can handle.

 

I have too been trying to figure out if I need to upgrade my 19#ers since I am putting in Cushman stg1 cams. I'll have cams, o/r x flows 75mm TB and plenum K&N filter Sniper SF and my wideband