With the right size 62 those injectors will do just fine if you ask me. Dont let egts scare you to much. They are something to keep an eye on closely yes but in another way people get to scared of them.

I get scared because i know aluminum melts around 1300* So what is the limit for short bursts?

Ive personally seen 1700 on stock pistons might have been more. Im not gonna say i take mine very high myself nor do I condone of the 1700*. The hottest my truck has ever been is 1250 at that point i shut it down.

Running in short bursts over 1200 shouldnt hurt anything. Granted, you dont want to do it all the time, but every now and then wont cause instant meltdown.

Unless you hold it flat going up a mountain and the gauge is pegged for a minute or so you shouldn't melt anything. Be smart about your driving but don't be a pu$$y. If you don't want a bigger turbo you are limiting yourself pretty good. You have bigish injectors but I have overwelmed hx40s with stock fuel systems.