Originally Posted by cobalt327
Do a leak down or compression test- it could have a bad head gasket.
Thanks, I will try this. A leak down tester is on of those tools I haven't added to my collection yet.
He is running a copper head gasket with copper head gasket sealant. I inquired as to whether or not he spec'ed the flatness of the head or barrels before he assembled them. He cleaned up the heads with some wet 800 grit & a pane of glass.