I believe I have a bad injector or two on my 93 Ford and I was wondering where to buy them. I have seen people talking about this before and I have been searching the forums for info but for some reason I am striking out. I also wonder if a upgrade is worth it so maybe I can ask that and not get punched. I don't intend on racing the truck or anything like that I just use it for work and it could use some more power if I can get it without sacrificing reliability. So if somebody could steer a diesel newb in the right direction of what to buy and where to buy it I would appreciate it much.