1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

webber characteristics

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Old 07-26-04, 09:47 AM
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webber characteristics

what are the characteristics of a webber carb on a stock 12a engine...why is it not recomended by RB?
Old 07-27-04, 07:09 AM
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I think it is because the Weber is awesome at flowing alot more fuel and air. Without porting or a header mod, it is worthless. That larger amount of fuel and air can't flow any better through a stock port than with the original Nikki carb.
Old 07-27-04, 10:29 AM
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i agree, ur better off going with rb's holley setup.
Old 07-28-04, 12:16 AM
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Originally Posted by leif
what are the characteristics of a webber carb on a stock 12a engine...why is it not recomended by RB?
which one? dcoe or IDA
Old 07-28-04, 12:17 AM
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Originally Posted by RX7Kevin
I think it is because the Weber is awesome at flowing alot more fuel and air. Without porting or a header mod, it is worthless. That larger amount of fuel and air can't flow any better through a stock port than with the original Nikki carb.
Is that from experience or a wild guess.
Old 07-28-04, 07:03 AM
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Don't see why. Use a 40DCOE or 45 with 36mm chokes in and you should be fine. But you have to know a teeny bit about how webers work.


Not tried, but I do have a lake cities manifold for a 12A in the garage :-)
Old 07-28-04, 02:35 PM
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weber carbs are way more tuneable than most holley carbs so ultimatle the weber carb would be a better choice overall..
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