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jack backer · 04-10-2022, 06:56 AM

The Marvel is a later design than Zenith. It uses an emulsion tube istead of multiple jets. The emulsion tube design was used on Stromberg 97’s as well, a much simpler design than the Zenith.

All three carburetors mention flow about half of the CFM of the A engine. Matching carb air flow to engine air flow yields peak performance.

04-10-2022, 06:56 AM	#13
jack backer BANNED Join Date: Mar 2022 Location: Chenango Bridge NY Posts: 433	Re: Sears Marvel 2405 The Marvel is a later design than Zenith. It uses an emulsion tube istead of multiple jets. The emulsion tube design was used on Stromberg 97’s as well, a much simpler design than the Zenith. All three carburetors mention flow about half of the CFM of the A engine. Matching carb air flow to engine air flow yields peak performance.