I have a friend who has the money to spend bombing his truck. I will help him with the gauges but most of my experience has been with 12 valves. I am looking for someone in my area who could let my try an EZ for a day so I can sell him on it. He is looking for more towing and all around better performance. Also, do you think we should go for a fuel pressure gauge while we are at it? He doesn't want to clutter up his truck, but I don't want to grenade his inj. pump either. Thanks, Jeremy.