You are going to need some Turbos to go with those big injector's and only one or two more thing big injectors by themselves aren't going to make you any faster

 

You're gonna be disappointed.

Keep in mind, the goal is to atomize the injected fuel. The volume used with typical driving has enough pressure coming out of the stock (or reasonable larger size) nozzle to do so.
Getting WAY too big is gonna result in the nozzles Peeing the fuel into the cylinders.

You can't "Detune" a fixed nozzle.

With the typical maximum fuel available with a typical 12mm VE H/R, nozzles comparable to 6x.016" ~ 6x.018" are gonna be about it. They will haze considerably at idle and will require a LOT of air to keep the EGTs under control.

 

Read this a few times and listen to him close. He is 100% correct. You will be very disapointed with a large injector and no supporting mods. And were not just talking some screws here.

 

got to back this up to as bobby and david said thats correct you can run a garden hose for an injector if you like but to make it work well and make power you HAVE to back it up with the other mods