http://www.horsepowerfreaks.com/partdetail...ollers/FCD/1917 hey guys i was wondering if this was safe to use with a greddy e-manage ultimate and some larger injectors prolly sard 800cc with a tune to get some more power out of my 2nd gen 3S-GTE swap i have going in progress right now ?

Yes.
But what turbo are you planning to use that would require 800cc injectors?
Have you read the power primer?
http://www.mrcontrols.com/primers/power.htm

Well i was thinking maybe stock Fuel injectors wouldnt be enough if i wanted to use this and go above the 15 psi fuel cut im pretty sure it is. Reading this makes me learn alot of new things. And i was just planning to use my same old stock Ct-26 thanks alot for opening this information to me lagos.

Stock injectors are perfect for any boost level the ct26 can make. You would actually be doing yourself more harm then good by upgrading them.
The power primer is a great way to learn the basic upgrade path for these motors.