Re: Model a vs b carburator
It appears your question involves three (3) things; i.e., money, improved performance, & choice between an A or B carb:
I would guess you would be happy with the B, not because of money, & not performance which will not be much better with a stock A engine; however, because of your interest in performance, if you have the B carb, & later try out an enlarged A intake, with a higher compression head, & a higher lift cam, you will be glad you chose the B carb.
Just a guess.
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