toyot111,
welcome to the wonderful world of metal finishing.....welcome to finishingtalk.com too!
why may i ask, are you zinc plating a carburetor? i am no 'Cooter' from hazzard county, but i believe your carb may be zinc alloy/if not an aluminum alloy and not pot metal, correct me if i am wrong, maybe you are just using the slang term "pot metal"???
regardless all three base metals have similar characteristics in that you just do not plate any of these without the proper pre-cleaning and pre-plate process, i.e. a copper strike......but that's another topic (focus skelton)
as for you question regarding anode baskets, i am going to assume you may have 2" dia. SHG zinc ball anodes in titanium baskets, which of course will not require much anode surface area due to the size of your tank and the assumed maximum current of your rectifier, again, relative to the size of your tank.....i am guess maybe 100 amps or less??? which relates to approx. 5 sq.ft. of anode surface area @ 20 asf or approx. 60 - 2" dia. zinc balls in 2 - 6 anode baskets (depending on style of basket)
as for placement, 2 - anode bars on each side of tank (parallel) w/1 - 3 anode baskets on each anode bar, w/plenty of distance from anode to cathode....and you will be ready to plate your holley carburetor....woo hoo!!
i hope this helps, good luck.
Skelton, hOST
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