NO
They are a PIA
Want a 600 HP stroker Big Block? Take the 4 barrel off a 700 HP Big block and replace with a Six Pack.
Six packs may look real good on a National Winning NHRA car but in real life any dyno operator will tell you they are old school mystic BS. On a stock 440 they sound good and are fun but that goes out the window when you really want to make real modern day power levels--ok ok there are you that will point to some folks making great hp with so and so but honest the cfm deal is BS--distribution stinks, intake volume is nothing to get excited about--that is KEY to making big power--A Six Pack is a legend, and like most they are never really what they are supposed to be--Elvis is an exception--I saw that cat and he was AMAZING! I had a 500 inch pump gas Eddy headed with Max porting--custom solid roller yadda yadda, that engine would not make over 600 HP on the dyno to save my life--modded the six pack for days--put a real carb and intake on it and you get my first line in this post.
They look cool but cause more PIA than ex wives. Yea they moan about like one but....