Zenith vs Zenith-2 Carb. Which is best?

[Fred K-OR]

I need to do something with the current carb on my coupe. The car will not keep running when it comes up to a stop sign. So the present carb likely needs some work. Or I have two additional carbs. One is just a Zenith and the other is a Zenith-2. My thought at this time is to rebuild one of the extra carbs I have to replace the current one on the coupe and also to just have an extra carb in case it is needed.

So the question is-If I rebuild one of the extra carbs I have, which one would give me the best results? The Zenith or the Zenith-2.

Would appreciate anyones ideas because I know nothing about which type of carb would work the best. Thanks for any ideas.

[Fred]

Originally Posted by Fred K-OR

I need to do something with the current carb on my coupe. The car will not keep running when it comes up to a stop sign. So the present carb likely needs some work. Or I have two additional carbs. One is just a Zenith and the other is a Zenith-2. My thought at this time is to rebuild one of the extra carbs I have to replace the current one on the coupe and also to just have an extra carb in case it is needed.

So the question is-If I rebuild one of the extra carbs I have, which one would give me the best results? The Zenith or the Zenith-2.

Would appreciate anyones ideas because I know nothing about which type of carb would work the best. Thanks for any ideas.

Only difference is the # 2 is Harley made..

[BILL WILLIAMSON]

The word is "HOLLEY" Bill W.

[Mike V. Florida]

Zenith, holley, Ford; no number, 2 and 3

[modela-carb]

Ford used 2 carburetor manufacturers, Zenith and Holley. The early (1927) Zeniths were blank on the top & marked "Zenith" on the base. The 1928 Zeniths were marked "Z" on the top and Zenith on the bottom. Thereafter all Zeniths were marked Z on the top & Zenith-1 on the bottom.
The early Holleys (1928) were marked with an "H" or plain on the top & either "H" or blank on the bottom. Beginning in Jan '29, Holley marked all the bottoms with Zenith-2 & the tops continued to be blank.

The markings were just to identify the manufacturer for Ford. Zenith-1 and Zenith-2 are internally & operationally the same. The earlier carbs have some differences that need attention if you use them...main one is the earlier carbs ('27-'28) have an integral/built in secondary well and idle jet length and all the rest have a separate secondary well & shorter idle jet.

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Except of the double venturi and the secondary well models of the early carbs , all three are the same. All parts will interchange including the castings.

[Fred K-OR]

Thanks guys for the information. Especially Jim for the detailed description of the types of carbs. So it looks like either of the carbs would do the job after getting a rebuild.