2000 5.7 gsi pefs injectors

[ChrisCraftFan]

Okay I have been killing myself trying to replace my TBI injectors. There is no part number on top of the old ones and that makes it even harder. I have been back and forth for a long time on what to order. I am thinking the Standard injectors TJ17, I get an email a little later from someone at Standard saying to use TJ11, I found an old thread on here that said TJ11 where wrong and to use TJ17. Anyone know for sure what I should use? This is way harder than it should be.
Please help me if you can!!!

 

[alldodge]

The GSI uses 29 +/- 2 psi regulators
Standard says to use TJ17, then I would use TJ17

 

[Lubak572]

Google SPR Performance in IL. I got my Tbi kits from him, knows Tbi really well.