Dave, you might want to give Don Pilling from SnakeBite a call on 07 5529 0877. He did a lot of research recently for EFI 460 options. I have a horrible feeling that he couldn't find any solutions for latest EPA regs. Do you only need to meet 1992 regs, or current?
http://cgi.ebay.com/ebaymotors/ws/eB...spagename=WDVW
Tough break for you...