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Old Jul 25, 2017 | 08:15 AM
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Trouble With Holley

Hey guys I have a major issue. I recently bought a 670 cfm street avenger Holley carb. Now I took the carb all the way apart, cleaned every port and blew the whole thing out. I know its clean. I install the carb and the engine comes alive, its very stout and snappy but it will not idle. I have a 750 cfm 4160 I am running. its too much for my application but it idles. I cant for the life of me figure whats going on with the street avenger.. Any suggestions would be perfect!!!! Thanks
 
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Old Jul 26, 2017 | 02:23 AM
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From: W (BY GOD) V
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Vacuum leaks?

Do you have a vacuum gauge?
 
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Old Jul 27, 2017 | 10:34 PM
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What motor is it on? What size jets are in the carb?
 
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Old Jul 31, 2017 | 11:37 PM
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Originally Posted by 3rd-coast-thumper
What motor is it on? What size jets are in the carb?
Jet size has nothing to do with the idle circuit.
 
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Old Jul 31, 2017 | 11:41 PM
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From: south louisiana
Originally Posted by Hennington400
Hey guys I have a major issue. I recently bought a 670 cfm street avenger Holley carb. Now I took the carb all the way apart, cleaned every port and blew the whole thing out. I know its clean. I install the carb and the engine comes alive, its very stout and snappy but it will not idle. I have a 750 cfm 4160 I am running. its too much for my application but it idles. I cant for the life of me figure whats going on with the street avenger.. Any suggestions would be perfect!!!! Thanks
If The 750 was a double pumper only then would it be "too much" carb when you nailed the gas pedal at a dead stop. When you bolted the carb on, did you reset the initial timing first, before tuning the carb ? What is the timing set at ? This has everything to do with the idle settings. What ignition are you running on this motor ?
 
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