You're definitely looking at a custom chip. To go from TBI to multiport injection the fuel requirements are different. AL www.ChipsByAl.com <A HREF="http://www.chipsbyal.com/">Chips By AL</A> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.diy-efi.org/pipermail/gmecm/attachments/20010505/8277e499/attachment.html>