Thanks, guys! Fast 68, appreciate the confidence in the Edelbrock heads. I have access to a borescope, and will pop the carb off this weekend to peek inside. Have the RPM dual plane. If oil is pooled on the valve back, it could be from either the valve seal or the intake seal, right? So, I guess if oil is coming from the intake I would expect to see oil at the intake/head runner interface?

If leaking, would you put a gasket between the valley pan and intake, or only use sealant between surfaces.

Had 0.012" taken off block deck surface. Rebuilt this block back in the 80's, but can't remember if the deck with milled then.

No oil pooled on the valley pan.