the best way for fueling goes
larger fuel pump to deliver fuel
larger injectors to compensate
larger fuel lines ( swap the evap 3/8" line with the fuel feed line) both hard lines
fuel pressure regulator to compensate fpr under boost ex fpr 1:1 so your fueling is consistent
new pickup system for fuel to deliver more fuel to your pump
the guys running 668's i dont understand
the injectors i gave you were bosch 440's modified to 480's i think, with larger fuel lines and a slight higher fpr those will be fine, not enough fuel was never a problem
and for everyone toyotaguy got s steal on this kit, under half the price of the urd. The turbo i sent looked good, and was pulled apart by me and my ase certified buddy who actually works at al hendrickson toyota (reputable). he pulled the exhaust housing off and never told me the bolt broke but i asked him and he admitted but said the exhaust side looked good so i never second guessed him. We were trying to package it all up together so yes i did not see every part for my self. I am offering alot of goodies to him to completely finish his setup fueling and all as a work out.
The kit was sold months ago and i dont know of any company who would even do that, i am going off good faith right now. checking the kit earlier would have been easier to deal with, like I asked you to. but its all cool man, BTW this BOOOOOSST is like no other. ask muzzyfsu ( all done apr/trd s/c x runner) and megablitz tt x runner.