Holley 94's ECG-5 or ECG-6?

Another question for all you rodders out there. I've bought two edelbrock ol396 intakes for my '55 olds. One has three holley 94 ECG-5 and the other has three ECG-6 on it. Now I'm assuming they are both the same just the 6's are the newer version and have the auto-choke. Is this correct to assume? I like the look of the 5's better but which should I be using? Or does it matter?