The "swing arm" bracket for the alternator has a second brace that attaches somewhere to the front of the engine. It has been too long since I disambled this engine to remember exactly where it attaches to.

My original 76 block was swapped by the machine shop for a 77 block (because of deck twist issues). Is there a difference in the blocks whare the bracket is meant to attach? The new engine also has Edelbrock RPM heads if that matters.