John, I guess your idea is use the 30 lead of relay to feed the trigger to the EFI.
i think it goes like this...
connect ign 1 and 2 to terminal 86 as the turn on voltage 85 to ground 30 is your fused 12v source from the battery 87 is your relayed output, i would look for a double output relay (87b terminal) in case i needed two relayed 12v sources...