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Jack Shaft · 06-05-2021, 09:41 AM

Drill the center runner of your A intake manifold to 1.25" to realize any gain in performance from a B carb. The best thing is the port/starboard mount float valve, no more stalling on hard stops.

06-05-2021, 09:41 AM	#5
Jack Shaft BANNED Join Date: Dec 2019 Posts: 1,196	Re: Model B Carburator Drill the center runner of your A intake manifold to 1.25" to realize any gain in performance from a B carb. The best thing is the port/starboard mount float valve, no more stalling on hard stops.