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

I have a 408 with Indy/ Edelbrock heads with 1.6 and a 507/510 cam, but its higher with the 1.6 rockers, but off the top of my head I can't remember what it comes out to. But, I am curious about the F.A.S.T. fuel system and if anyone has used one, ether the EZ EFI or the XFI systems, and if so, did you like it or not?
haven`t used one yet,but thinking real hard on the fast 2 system. it`ll go up to 12oo h.p., where all of the others are 525-600 max.-------------------------------------expensive!----bob:coffee2: