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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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#63662 08/01/2006 2:31 AM | Joined: Nov 2002 Posts: 1,002 Shop Shark | | Shop Shark Joined: Nov 2002 Posts: 1,002 | Yes the main jet on the 292 is usually larger than a 230/250. The throttle bore is also larger by about a 1/4 of an inch too. There's a 40 CI difference in engines size. The jet and throttle bore aren't going to cause the fuel to percolate in the fuel bowl.
Did you put a phenolic spacer between carb and intake manifold? If not try that.
Larry
I don't own a vehicle that isn't old enough to drink.
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