1971 Plymouth 'Cuda originally 383-4, now 440-6

OK, so I just got my engine running. In the process of overhauling and installing my engine, I bought a new wire harness from Year One. 440-6 electronic ignition harness. I had a Tuff brand single wire alternator that I installed. I am using a stock type voltage regulator on the firewall and just disconected the one on the back of the new alternator. Here is my problem. The harness has connections for a four post balist resistor. I got one down at autozone for a 1975 V8 truck. My alternator is putting out 16-16.5 Volts at the battery and I think it might be due to the wrong balist resistor.

Can anyone confirm this and maybe give me a part number that I can get at Autozone or O'Rielys, somewhere local.

Thanks.


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(O O {]{]{]||[}[}[} O O) 1971 Plymouth 'Cuda 440-6 {||O||} 2000 Yamaha V-Max (O O [========= SRT] O O) 2011 Dodge Challenger SRT 392 . Making as big as a carbon footprint as I can!!!