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Old 09-10-2014, 06:59 PM   #1
400/400
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Fast idle - Late 70's sbc - picture request

Does anybody have a late 70's engine with a M4MC quadrajet on it with AC? I've swapped a 78 400 sbc into my 85 K20 and kept the AC components from the 85. The 78 didn't have AC & the carb doesn't have the same mounting provisions as the one from the 85. I have the solenoid from the 85s electric choke carb and can fab a bracket easily.

If somebody has a chance to get a reference pic of where the bracket ties into the carb and how it contacts the throttle linkage it would help greatly. Also if I could get a dimension of the distance of how far it "bumps" the throttle shaft, it would be much appreciated.

Thanks for any input.
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1979 K25 350/SM465/205/44HD/14FF
1985 K20 400/400/208/10/14
1987 V10 TBI350/700R4/208/10/10
'85 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=643968
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Old 09-10-2014, 07:07 PM   #2
geezer#99
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Re: Fast idle - Late 70's sbc - picture request

Is this what you need.
On my 84.
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Old 09-10-2014, 07:28 PM   #3
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Re: Fast idle - Late 70's sbc - picture request

Thanks for the reply. That's very similar to the carb on the 350 I pulled.

I need to adapt that solenoid to a late 70's carb. So I need a pic of a late 70's carb with AC.
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1979 K25 350/SM465/205/44HD/14FF
1985 K20 400/400/208/10/14
1987 V10 TBI350/700R4/208/10/10
'85 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=643968
400/400 is offline   Reply With Quote
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