I got a built ECU from Z Dr. Electronics. It's a pm6, chipped, 7500 Rev Limit. Higher fuel regulation. Works great w/ 255 fuel pump. Also tuned for optimum performance and to avoid any electrical issues. Paid $500 for ECU & Build. Built on 8-26-05. Has 2 year warranty. Has 13 month warranty remaining. I'll take $300 + S&H.