Yeah specs are the same. If you have the time I'd pull the entire throttle body off to do it and give the idle port a good clean out, and make sure all the other unnecessary ports in the throttle body are blocked off.
Edit, reread first post, might be the aav port isn't blocked creating a vac leak.
https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcQDobjuvtxRGfdVRHhoB50NzhrcmhXYgfMOJQtjPLxIOTxgGul3DVkXbOjY.
I'm assuming a cut and shut manifold with ISCV delete?