NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   1st Generation Specific (https://www.nopistons.com/1st-generation-specific-16/)
-   -   12a...holley 600 question. (https://www.nopistons.com/1st-generation-specific-16/12a-holley-600-question-66164/)

sen2two 06-09-2007 01:16 PM
i recently bought an 85 Gs.



theres a racingbeat manifold and holley 600 on it. im new to carbs and im wondering why anyone would intentionally place a screw in the throttle linkage so that the carb works as a 2 barrel instead of a 4??? the 2 that do not open are closest the the passenger fender....a little bit of carb knowledge would help me here. i been reading up, but dont see why that would be done.

Latin270 06-09-2007 04:58 PM
Originally Posted by sen2two' post='874567' date='Jun 9 2007, 11:16 AM

i recently bought an 85 Gs.



theres a racingbeat manifold and holley 600 on it. im new to carbs and im wondering why anyone would intentionally place a screw in the throttle linkage so that the carb works as a 2 barrel instead of a 4??? the 2 that do not open are closest the the passenger fender....a little bit of carb knowledge would help me here. i been reading up, but dont see why that would be done.
Its because thr Holley 600 is too big for a stock 12a. So by making it a"2 barrel" not as much gas goes to the motor thus making it more drivable. https://www.nopistons.com/forums/pub...#>/biggrin.gif


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