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Post deleted by moparts #144020 10/31/08 05:03 PM 10/31/08 05:03 PM
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Re: 440 backfiring issue #144021 10/31/08 05:17 PM 10/31/08 05:17 PM
Joined: Aug 2005 Posts: 11,543 chicagoland,usa B buildanother I Live Here
buildanother I Live Here B Joined: Aug 2005 Posts: 11,543 chicagoland,usa	If it's a repetative bunch of popping, it could have a round cam lobe.

Re: 440 backfiring issue #144022 10/31/08 09:32 PM 10/31/08 09:32 PM
Joined: Sep 2008 Posts: 30 Oregon C CJV5314 member
CJV5314 member C Joined: Sep 2008 Posts: 30 Oregon	I had that happen on my 440. Was running an eldelbrock aluminum intake with a carter 4-bbl. when I switched over to a new six pack setup, I noticed that the bolts were loose on the 4-bbl intake.oops! I made sure that I used a new gasket and tightened it up the second go around. No trouble with the new setup. Lean condition caused by loose intake?

Re: 440 backfiring issue [Re: CJV5314] #144023 10/31/08 09:39 PM 10/31/08 09:39 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Check your firing order and plug wire orientation & routing..

Re: 440 backfiring issue #144024 11/01/08 10:25 AM 11/01/08 10:25 AM
Joined: Sep 2006 Posts: 1,139 West Tennessee R rbstroker super stock
rbstroker super stock R Joined: Sep 2006 Posts: 1,139 West Tennessee	I have had the same problem more than once. every time, it was a wiped cam lobe. This is the land of the free because of the brave

Re: 440 backfiring issue #144025 11/01/08 12:18 PM 11/01/08 12:18 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	plugs/wires/timing/rotor phasing Last edited by RapidRobert; 11/02/08 12:51 PM. live every 24 hour block of time like it's your last day on earth

Re: 440 backfiring issue #144026 11/02/08 03:17 AM 11/02/08 03:17 AM
Joined: May 2008 Posts: 5,399 Aurora, Colorado 451Mopar master
451Mopar master Joined: May 2008 Posts: 5,399 Aurora, Colorado	If it only does it under acceleartion I would think it is a lean air/fuel mixture mis-fire. Check for vacuum leaks, and maybe the outer carbs are opening too quickly or may be too lean?

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