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Über Genius
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Has anybody swapped out the factory carb with a Holley or know of a reliable replacement for a 74 opel manta 1.9?
Also, will an electric fuel pump be needed?
Has anyone done it? Yes
Is it easy? No.
A holly is basically a Weber that's mirrored. The linkage doesn't work with the holly.

No, you don't need an electric fuel pump for it.
 

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Vendor
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3,089 Posts
Has anybody swapped out the factory carb with a Holley or know of a reliable replacement for a 74 opel manta 1.9?
Also, will an electric fuel pump be needed?
On a stock 1.9L Opel CIH, a Weber 32/36 is a much easier path forward.
Any reason for wanting a Holley? There are some threads here about the issues
adapting a Holley-Weber 2 barrel carb for a GT, including the linkage, as already pointed out.
Cheers,
Ron in Indy
 

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Super Moderator
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You can go "basic" with a Weber 32/36, direct bolt on, a little modification on where the linkage attaches to the carb, a little tweaking on the idle mixture, and idle speed and you're good to go, then there's the 38/38 Weber, again direct bolt on, linkage mod, but, will definitely need "tuning" to your motor/driving. Both are sold by OGTS
 
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