F. A. S. T. system, has anyone used them?

I am also going with the XFI 2.0 that I got from Fastman. He is great to work with answers any questions you have usually the same day. A fellow member here (Garys) is using the ez efi on his Hemi swap and is happy with it. The XFI 2.0 system can also has the self tune feature.