99 Lincoln Town Car 4.6 miss

[nick5m]

I just replaced the head gaskets on a 99 Lincoln Town Car with a 4.6L. It's now missing badly at idle. Pulling the 1,2,5,6 cylinder coil wire or injector wire and there is no change. So obviously these are my problem cylinders. Plugs are brand new and firing. Noid light indicates signal to injectors. I sprayed B-12 around for any notice of a vacuum leak. Nothing there. I have not done a KOER yet since I didn't have my scanner with me. Just wondering if anyone had any more ideas on where to maybe search. I'm starting to run out. I know timing is right. Even though there is always the possibility of a jump. But that wouldn't normally be cylinder specific. Any feedback would be appreciated.

[phantom_smack]

Did you double double check the firing order ?

[mark v]

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