Okay, we decided to tear into the engine. We double checked that TDC was marked correctly and that the cam was installed per the cam card. Both were correct.

However, when taking the intake off we found that we never put any sealer on the gaskets between the intake and the heads. Not sure how we missed that. Could that have caused the vaccum leak that NITROUSN mentioned.

Not sure what else to check, if anything.

Thanks again for all the help.
Ken