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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#32837 05/10/2004 12:34 AM | Joined: Sep 2001 Posts: 85 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2001 Posts: 85 | I had one of those carbs on a 74 Nova with a 250. I found that if I played with the mixture screw I could get it to squeal. No vacuum leak. I had that car for 10 years, and when ever I messed with the carb I could get it to squeal or whistle by playing with the mixture.
I have heard one or two other carbs do the same thing, I assume it has to do with air passing over/around/thru passages in the carb throat. | | |
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