oil leak from eddy intake

I have a fresh 318 with and eddy performer and when I assembled it I used the metal gaskets. Besides that its been about 500 miles since rebuilt and no problems till last night. I was changing a thermostat out and when I was warming up the engine there was oil coming out of the second to the last intake bolt on the drivers side where it meets with the head and the intake valley filled up with oil. Any ideas thanks for reading