75 Duster: Six Pack or 4bbl?

Love to see pics of 6 pack. Definately interested in it when/If you sell.
Personally, I've owned 3 different setups. 1st one, I didn't know what I was doing and carbs had numerous problems I was too dumb to fix.
2nd and 3rd setup run like a "raped ape!" 3rd set was mechanical carbs and was so much better then the vacuum setups. Also had the Tri power air cleaner for last one.
If you know much about Hollys or you are willing to learn them inside and out, I'd go with the 6 Pack!!!