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Old Sep 18, 2003 | 03:04 PM
  #1  
speedkingf100's Avatar
speedkingf100
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From: Rimbey Canada
Holley Carb Trouble

I have a 650 cfm holley carb on my 1984 351 w, and now it is having serious problems, when i stomp on the gas pedal the truck seems to cut out and it has lost power.
Steve
 
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Old Sep 18, 2003 | 09:19 PM
  #2  
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71swissaqua
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From: Huntersville
Holley Carb Trouble

Sounds like the accelerator pump is bad. With the engine off look down the carb and pump the throttle and see if you see 2 steady strams of gas shoot out
Clint
 
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Old Sep 18, 2003 | 09:27 PM
  #3  
speedkingf100's Avatar
speedkingf100
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From: Rimbey Canada
Holley Carb Trouble

Yes my accelerator pump works, could it be flooding itself?
 
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Old Sep 19, 2003 | 05:29 AM
  #4  
macguyver's Avatar
macguyver
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From: Minneapolis, MN
Holley Carb Trouble

If the choke is closing up it could be flooding. If the electric choke heater (I'm assuming) has gone south, the only thing holding the choke open would be the choke pull-off. Then, when you open the throttle and the vacuum drops off, the choke will close.
Or, maybe the fuel filter is partially plugged and can't supply enough fuel for the demand when you get after it.
Another possibility is slow ignition (or cam) timing.
 
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Old Sep 19, 2003 | 03:09 PM
  #5  
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speedkingf100
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From: Rimbey Canada
Holley Carb Trouble

Thanx for the help I have fixed the problem it was indeed the ignition timing, it wasn't advanced enough. but now my carb hesitates when i punch the gas off the line
Steve
 
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Old Sep 20, 2003 | 02:44 AM
  #6  
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90f150moneypit
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From: Still under the hood in O
Holley Carb Trouble

Check your float levels and idle speed mixtures. The idle speed mixture (screws on either side of front bowl) is the most common tip-in problems.
 
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