Here you go,all the info is in this link.
http://www.automotiveforums.com/vbul...d.php?t=199192 Your neighbour is correct,you need wiring mods or harness change with the later teg you mention,earlier teg unit needs no mods due to no advanced timing.Just plug in the teg ECU.All your suspension and brakes can be upgraded from the donor teg too.
Welcome to the board...