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Old 06-21-2001, 02:26 PM
Gearbox Gearbox is offline
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Join Date: Apr 2000
Location: Westfield New Jersey
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Working on a matching numbers 70 GTO RA III, with all correct parts, all rebuilt. Experiencing a high idle after warm up of up to 1700 RPM's. idle screww is completely backed out and primary butterflies are closed. Checked the fast idle cam, but that is not the problem. I did notice that each of the primary butterflies has a 1/8" hole drilled into them. Does anyone know if these are factory and belong there or not? If not, I think I found my answer. If so, I think I'm buying an Elderbrock Q-jet. Thanks Allan

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Old 06-21-2001, 02:26 PM
Gearbox Gearbox is offline
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Join Date: Apr 2000
Location: Westfield New Jersey
Posts: 12
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Working on a matching numbers 70 GTO RA III, with all correct parts, all rebuilt. Experiencing a high idle after warm up of up to 1700 RPM's. idle screww is completely backed out and primary butterflies are closed. Checked the fast idle cam, but that is not the problem. I did notice that each of the primary butterflies has a 1/8" hole drilled into them. Does anyone know if these are factory and belong there or not? If not, I think I found my answer. If so, I think I'm buying an Elderbrock Q-jet. Thanks Allan

  #3  
Old 06-21-2001, 06:40 PM
carbking's Avatar
carbking carbking is offline
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Join Date: May 2000
Location: Eldon, Missouri 65026
Posts: 3,625
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Allan, they are part of the idle bypass circuit and do belong. Don't buy the 'e', the Pontiac RA carb is better. Give me a call during offices hours and will try to help. Jon.

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