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scicala · 11-16-2019, 06:05 PM

The float level for a 1901 model Holley ('52 and '53 Merc.) is 5/32" measured at the top toe of the float with the float all the way up. 1/2" is what the actual FUEL level is supposed to be with the float set at 5/32". This is all out of my old Holley parts and specs manual.

Sal

11-16-2019, 06:05 PM	#4
scicala Senior Member Join Date: Jun 2010 Location: Detroit suburb, MI Posts: 3,706	Re: Float gauge for Holly 1901 carb The float level for a 1901 model Holley ('52 and '53 Merc.) is 5/32" measured at the top toe of the float with the float all the way up. 1/2" is what the actual FUEL level is supposed to be with the float set at 5/32". This is all out of my old Holley parts and specs manual. Sal