I'll check tomorrow but I think that both are wired up. Maybe that's why the fuel pump constantly makes noise even with the Blazer isn't cranked. My Camaro's fuel pump makes a noise when I first turn the key until it primes and then it cuts off. This thing runs forever. So there was an issue with the fuel pump from the get-go.
Another question: Will I need any additional wiring like a harness of some sort from the distributor? Also, will I need a coil and an ignition box? Sorry but I'm just not familiar with everything that a carb'ed car has.