Author Topic: carb difference  (Read 1568 times)

Offline firedan

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carb difference
« on: November 24, 2012, 06:08:55 PM »
i have two quad jet one is original and to my 78trans am W-72 400 auto with the numbers 17058266 and the other is 17058278 i know both are from 78 cars and automatics but what else is different. thank you

Offline Cliff Ruggles

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Re: carb difference
« Reply #1 on: November 27, 2012, 04:40:23 AM »
Very little difference, same castings, throttle body, airhorn, etc.  Might be a vacuum fitting or two that aren't the same, and slightly different calibration, that would be about it.....Cliff