Coolant. Be kinda weird to leak that much oil there. It's hard to tell EXACTLY where a leak is coming from with the engine put together and in the car. All I could see from the angle I had was it running off the block.
Thanks flyfish! That did the trick. I grabbed one of my pliable scrapers, centered it in the cork gasket, started at one side angled toward the center tapped it till I hit the center pin and repeated from the other size. It popped right off "eazy peasy" I took a wide flat blade screwdriver and put it in between the cork I'd split, just a couple of taps and the gaskets between it and the heads let loose. No damage to the intake or the block.
A new set of intake gaskets are in order. I'll have to borrow my neighbors granite surface plate to check the flatness of the milled surfaces. I was a machinist, he was a die setter. I'm sure we'll be able to manage.
