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Discussion Starter · #1 ·
This carb was included in the purchase price of my El Camino. It's a replacement for a Quadrajet. It was on the car when the previous owner bought it, but he put the old QJ back on. I think it needs a throttle solenoid for A/C use if I put it back on.

But I'm wondering if anyone has any specific recommendations, such as jet sizes, vacuum springs, etc., that would work well on one of our cars (350).
 

· VINTAGE MOTORHEAD
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Holley has website that may be helpful. You should be able to find the original jets, air bleeds, etc. By using that number. That number is not the model number but a stock number.
 

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Holleys run great right out of the box.
My suggestion is not to modify it,run it as is.
 

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Carb ?

I have used two of these carbs. Both new, 1 on a stock 78 impala and one on a mildly modified full size chevy pickup with a 400 small block. This carb with a set of headers and dual exhaust really wake up a small block. Idle speed and idle mixture was all I needed to adjust. Very good throttle response and good gas mileage if you keep your foot out of it.
 
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