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S-10 Has flatspot when secondaries open, bogs down a little bit on hills

Tiny
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As I remember the PV is in the bottom of primary bowl large nut thing unscrews to remove.
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Thursday, May 3rd, 2012 AT 12:16 AM
Tiny
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Look here. http://www.holley.com/types/Power%20Valves.asp
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Thursday, May 3rd, 2012 AT 12:17 AM
Tiny
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Maybe its clogged up with carbon? A few months ago I took it apart and cleaned out a crapload of carbon
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Thursday, May 3rd, 2012 AT 12:20 AM
Tiny
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Just the top of it though
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Thursday, May 3rd, 2012 AT 12:21 AM
Tiny
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Also, if any vacuum hoses are hooked wrong, would it cause it to not work right? I believe I have them all hooked up right, does anyone have a diagram I could follow?
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Thursday, May 3rd, 2012 AT 12:23 AM
Tiny
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Do you know which connection allows it to open?
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Thursday, May 3rd, 2012 AT 12:24 AM
Tiny
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I know carbon always screwed up the quadrajet power valves. Rig up a manual choke pull rod in cab to help with starting.
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Thursday, May 3rd, 2012 AT 12:25 AM
Tiny
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Yeah I was going to go buy the cable setup from the auto parts store, you said the power valve was operated by vacuum? Is there a way I could check it without opening the carb?
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Thursday, May 3rd, 2012 AT 12:30 AM
Tiny
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I found http://www.holley.com/data/TechService/Technical/power_valves.pdf
im checking it out
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Thursday, May 3rd, 2012 AT 12:46 AM
Tiny
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I cant seem to find the idle mixture screw on mine, that pdf file said I could test it by screwing it all the way in, and if the engine dies its working
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Thursday, May 3rd, 2012 AT 1:21 AM
Tiny
ASEMASTER6371
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The idle screws on control idle, not anything off idle.

Roy
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Thursday, May 3rd, 2012 AT 1:23 AM
Tiny
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Power valve should work off carb base plate not any external connections.
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Friday, May 4th, 2012 AT 7:07 PM

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