http://fordfuelinjection.com/?p=54 Found some splice in pigtails here. You can find plug in style pigtails too to change the injector connector style as well, but those are a lot more expensive.

Does your '99 have returnless style fuel system on it? I thought the return systems were still shipping with the FMU?

http://www.bnmotorsports.com "And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my CEG brothers. And you will know I am the Moderator when I lay my vengeance upon you."