Leon, Been there done that with the kegger. You are not going to see any gains unless you really do something that I have not seen done before. Getting any kind of rpms is the biggest problem.

Also, as far as injectors go, I used the FMS (Ford Motor Sports) Cobra injectors (4 hole) and they actually increased my mileage by about 1.5 mpg. They were 24 lb ones. I was told that I could have rich idle issues, but I never experienced that.