I  have a  2004 ford excursion  with  a 5.4l 4X4 XLT Sport  4" lift  Loaded out   K&N CAI  and Power Aid  TBS , Flowmaster Dual Exhaust and a superchips tuner in it  Runs great  I  have put it up beside the V10  and the Power Joke   with  out any  problems  also  have a 2005 F150 4X4 5.4l Super crew XLT Sport 4" lift    it has a Valont CAI  and Power Aid TBS then a the Edge Evolution  with Dual   Flowmaster exhaust  runs good  not Like I  think  it should  then my  Daughters Pick up it is a 2007  F150 Reg Cab Flareside 4.6l  with  3"X5" Dropit has the jewelry  as well Valont CAI  Power Aid TBS  Edge Evolution  with  Straight pipes .... I  am very  interested in changing out the plugs and injectors  for the 2 pickups and the  excursion  but  about getting them dialed in I  don't knowho w easy  that  would be I  live in Oklahoma  and I  wouldn't know where to  start  to  find some one to  dial  one in .... if any  one has any ideas or suggestions  I  look forward to  reading them  all of the vehicals run good but  I  would like to  put a bit  ore pep  in there step  thank you  

Hi Charley. Sounds like you're off to a good start on your Excursion. In my experience, unless you do a supercharger, I don't know how much of a gain you're going to get from injectors. I think probably some work with a programmer and dyno-tuning could get you some good results. I know some companies make cams for the modular V-8s, but unlike traditional American V-8s, there are two of them, not just one (since it's an overhead-cam engine). Comp Cams has a pretty decent selection of  cams for the mod motors. I'd maybe check them out. I've also forwarded your link to the editor who is building Project Sinatra. He might jump in and give you a few tips. Hope this helps.