I have a 1971 Firebird with a fresh Chevy BB 396 engine. I want to test run it asap. Can I do this without the alternator hooked up? The engine wiring, electric fuel pump, battery, and HEI are all hooked up. The alternator is hooked up, but I need to do the rest of the dash/lights wiring. I want to run this thing first to make sure it is OK before I proceed. Is there some kinda diagram for this? I've seen many pictures of engines on 'dynos' and I dont see an alternator on most of them....How can I do this at home, in my garage, with the engine in the car???