Don't do what I did, and tighten the bottom of the Y piece before installing the Intake Manifolds.

I couldn't get the IMs to match up, and it's because the Y piece was ever so slightly crooked. I tightened the top of the Y piece to the IMs first, then the bottom, and worked like a charm.

The Code 3 Performance phenolic spacers were tedious, but went on fine with the cork gaskets Needswings supplied.

-Alex