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High speed stall

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Old Mar 26, 2023 | 11:13 AM
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Default High speed stall

I owe a 1972 corvette with the base 350 200 HP motor. I noticed when I go to increase the speed to about 85 it seems to stall like it has a governor on it. Any advice to why is welcome.
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Old Mar 26, 2023 | 01:33 PM
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Could you provide some more details?
You’re saying, you’re driving 85 and you floor it and the rpms don’t go up? No acceleration?
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Old Mar 26, 2023 | 06:19 PM
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If you have a quadrajet carburetor and you floor it to get on the freeway, it will stall out. The float bowl area is pathetically too small on them. And the carb runs out of gas. That is why I changed to a Holly spread-bore carb over forty years ago. Lou.
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Old Mar 26, 2023 | 06:55 PM
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Do you still have the original points style distributor?
When was the last time you cleaned them, set the dwell, and changed the condenser?
What do the spark plugs look like as far as wet, sooty, clean?
When was the last time the carb was truly tuned?

How long has the car behaved like this?
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Old Mar 26, 2023 | 07:03 PM
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You are running a lot of fuel through in these situations.
Is the preformed "S" hose in place at the pump?
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Old Mar 26, 2023 | 07:32 PM
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Originally Posted by loup68
If you have a quadrajet carburetor and you floor it to get on the freeway, it will stall out. The float bowl area is pathetically too small on them. And the carb runs out of gas. That is why I changed to a Holly spread-bore carb over forty years ago. Lou.
Complete nonsense.
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Old Mar 26, 2023 | 08:57 PM
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Please start your own thread. Then responses will be 100% yours and not confused with the original poster 72Gem and his question.
High jacking gets everyone no where.
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