Brad,
I've got a full set of the correct heads you need. Since you're planning on doing the SVT port matching, you've got to pull the heads anyways so it doesn't matter if you put on another set. Should be cheaper than trying to return the old motor. Also, if you were planning on having Kinger do them, I can ship them direct for you since he's only a couple hours away from me. Drop me a PM if you're interested.
Thanks,
Rick
