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  #1  
Old 02-16-2005, 03:27 PM
67ConvFB 67ConvFB is offline
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Picked up a quadrajet today. Number appears to be 170562. Anybody know what this came off of? CFM?

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Old 02-16-2005, 03:27 PM
67ConvFB 67ConvFB is offline
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Picked up a quadrajet today. Number appears to be 170562. Anybody know what this came off of? CFM?

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  #3  
Old 02-16-2005, 04:02 PM
goodtimes1500 goodtimes1500 is offline
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Appears to be missing a number I think

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Old 02-16-2005, 04:08 PM
Shadowjack Shadowjack is offline
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Missing 2 numbers.

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Old 02-16-2005, 04:51 PM
67ConvFB 67ConvFB is offline
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I thought there might be 2 extra numbers but they were either lightly stamped or still a little dirty and I was in a hurry to get to work. I' ll clean it up and check again after work and give the rest of the number. Thanks.

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  #6  
Old 02-17-2005, 12:14 PM
67ConvFB 67ConvFB is offline
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OK, here is the complete number... 17056262.

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  #7  
Old 02-17-2005, 09:35 PM
67ConvFB 67ConvFB is offline
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OK, found out that it is off a 76 455 auto FB thanks to Mr. Wallaces website. Now does anyone know if it is 750 cfm or 800 cfm?

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  #8  
Old 02-18-2005, 02:38 AM
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Kenth Kenth is offline
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Very nice 800cfm unit.
Flow is restricted some from secondary airvalve opening, grind the stop tab for 1.36" from opened valves rear edge to back of choke air horn and you will have full flow.
You might try .0400"-.0300" secondary rods and 5/8 turn preload on airvalve spring.
Set the APT 3.5-4 turns up from seated to start with.
If required one change at the time and only if there is a real problem with idle:
1. Open the idle discharge ports some.
2. Open the idle tube some.
3. Add some idle bypass air
Measurement on the idle circuit modification depends on engine size and cam used.

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Old 02-18-2005, 11:23 PM
67ConvFB 67ConvFB is offline
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Thanks for the info Kenth. I was wandering about the secondarys not quite opening all the way up top.

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