What the heck!

Mully did you try putting the pan up in place to see if it fits the engine correctly? That'll tell you if it's a pan issue or gasket issue. Also did you try flipping the gasket over end to end? They look very similar but fit correctly only one way. The front end is a little shorter if I remember right. I think that's the same oil pan set I bought for my new engine I'm building. Tomorrow I'll pull things out and have a look see if it fits right and check back.