why do you say your injectors are too small? didn't you use the stock injectors that came in the 5.3 intake? I have my 5.3 all ready to put in with the fuel lines installed and i new paint job. Just need to basically pick a weekend and install it. Can i use my stock engine coolant sensor for the electric fans or will the computer get mad and throw a code because i have it unplugged and wired into my own fan wiring harness.