Carburetor Jet Size

1959 - 1962, Mighty Mite, M422, Wanted, USED PARTS FOR SALE, and Knowledge Base
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Joe S
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Carburetor Jet Size

Post by Joe S » Sat Oct 28, 2017 7:14 pm

Does anyone know the size of the carb main jet?

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Radar4xfour
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Re: Carburetor Jet Size

Post by Radar4xfour » Mon Nov 13, 2017 3:40 pm

Joe,

I have a #60 in one of my carburetors.

Regards,

Radar.
Mighty Mite Carb Main Jet.jpg
Mighty Mite Carb Main Jet.jpg (27.42 KiB) Viewed 51 times

Joe S
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Re: Carburetor Jet Size

Post by Joe S » Mon Nov 13, 2017 8:14 pm

Thanks Radar,
that'll give me somewhere to start and check things out.

joe

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Re: Carburetor Jet Size

Post by first 422 » Tue Nov 14, 2017 5:55 pm

What are you trying to do? A 60 is a nominal holley main jet size so you can go to a holley web site and try and go either direction. A larger # is richer and a smaller # is leaner. At least that is how it was when I was building an old door slammer back in the day!!! If you live in an area that is above 3000 ft you may want to go a size or 2 leaner.
Regards,
Ed

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