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RE: Re Missing under power
By 63 galaxie man - 10/06/2004 9:01:13 PM; IP 172.161.150.14
Change your Carb or have her rebulit go with stock 4100 or 4150 motorcraft or upgrade to Holley or Edelbrock 1406 600 cfm and double check and make sure you have your fireing order right 1-5-4-2-6-3-7-8 turn distributor clockwise to advance timing stock timing should be set at 8 degrees before top dead center. also have noticed that 8mm wires from msd work great and cure alot of spark and backfire issues on 390 thunderbird motors. also check and see if your valve seats are worn out this will also cause a missfire by 1 percent enough for back fire. if that is not the case have new seats installed and get heads rebuilt will notice massive improvement, also have your points changed to new electronic or just change points and have them gapped to 14 is usually a great set up for a vacum advance distributor with points also would be a great time for new plugs and also a new coil also if you have the pcv valve setup on your motor change that will help alot with idle and exhast mixture.
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Collapse <a href=../ForumFE/reply.aspx?ID=18812&Reply=18812><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor18812" onclick="return false;">Thunderbird 390 motor</a>&nbsp;-- <font color=#0000ff>king, <i>10/19/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=18812', contentMargin: 60, icon: $('anchor18812') }); </script>  Thunderbird 390 motor -- king, 10/19/2003
Collapse <a href=../ForumFE/reply.aspx?ID=18813&Reply=18812><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor18813" onclick="return false;">RE: Thunderbird 390 motor</a>&nbsp;-- <font color=#0000ff>james, <i>10/20/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=18813', contentMargin: 60, icon: $('anchor18813') }); </script>  RE: Thunderbird 390 motor -- james, 10/20/2003
 Points worn out? N/M -- Royce Peterson, 10/20/2003
Collapse <a href=../ForumFE/reply.aspx?ID=18824&Reply=18812><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor18824" onclick="return false;">points...</a>&nbsp;-- <font color=#0000ff>james, <i>10/21/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=18824', contentMargin: 60, icon: $('anchor18824') }); </script>  points... -- james, 10/21/2003
Collapse <a href=../ForumFE/reply.aspx?ID=18826&Reply=18812><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor18826" onclick="return false;">Here are some other things to consider.</a>&nbsp;-- <font color=#0000ff>james, <i>10/21/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=18826', contentMargin: 60, icon: $('anchor18826') }); </script>  Here are some other things to consider. -- james, 10/21/2003
 RE: Here are some other things to consider. -- EK, 10/27/2003
Collapse <a href=../ForumFE/reply.aspx?ID=18849&Reply=18812><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor18849" onclick="return false;">RE: Thunderbird 390 motor</a>&nbsp;-- <font color=#0000ff>giacamo, <i>10/22/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=18849', contentMargin: 60, icon: $('anchor18849') }); </script>  RE: Thunderbird 390 motor -- giacamo, 10/22/2003
Collapse <a href=../ForumFE/reply.aspx?ID=22791&Reply=18812><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor22791" onclick="return false;">67Tbd 390</a>&nbsp;-- <font color=#0000ff>67T-birdMaN!, <i>09/13/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=22791', contentMargin: 60, icon: $('anchor22791') }); </script>  67Tbd 390 -- 67T-birdMaN!, 09/13/2004
Collapse <a href=../ForumFE/reply.aspx?ID=22801&Reply=18812><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor22801" onclick="return false;">Re Missing under power</a>&nbsp;-- <font color=#0000ff>Martin Micheelsen, <i>09/15/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=22801', contentMargin: 60, icon: $('anchor22801') }); </script>  Re Missing under power -- Martin Micheelsen, 09/15/2004
RE: Re Missing under power -- 63 galaxie man, 10/06/2004
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