I was looking to chip or programmer my 98 4.2 I heard a lot about superchip but can't find anyone that sells them I can get a hyper tech but not sure any help will be great

 

The SCT Xcal is a popular winner, but I bought mine from a local Ford performance shop and got it customed tuned. I'm not sure how much a $400 can tune is going to help you, maybe pick up a couple of ponies. IMO, not really worth it.