[greg64]

Greg, as I was looking at the new throttle bracket, I was thinking "that stud is too short". And what happened in the next picture... You might want to use a nylock nut or at least locktite on that one nut, to make sure it stays tight.

About the water passage in the rear of the manifold, that is the miracle of manufacturing of the SBC. The two heads are identical and interchangeable, to make manufacturing faster and cheaper. But the side effect of this (there are many) is that there are two useless water ports at the back of the engine that the intake manifold needs to block.

Going to get it running tomorrow?