This is why you don't use this kit.
Brand new genuine gaskets, Brand new adapter plate, all surfaces machined flat, brand new bolts. Modified the adapter plate like above to have the bolts go all the way through and secure it to the head. There was absolutely nothing more i could have done to give it a better chance at sealing. This is using a cooling system pressure tester at anything above 2-3psi. was obviously much worse at 15psi.
I would have spent probably 30+ hours in trying to make this piece of shit work properly.
Literally the only option i have left is to remove it all again and instead of using proper gaskets just gasket goo the ever loving f**k out of everything which really isn't right.