1st Generation Specific 1979-1985 Discussion

Top End Miss

Old Jan 17, 2005 | 01:59 PM
  #1  
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i have a 13b street port, weber 48 ida with open headers in a buggy, it has been running good but recently got a top end miss. no intake leaks and i took the carb apart and cleaned it also. i have a electronic distributor, is it possible that a leading or trailing ignitor could cause this problem?? it idles great and has great power bottom end but gets a bad miss when i rev it out.
Old Jan 17, 2005 | 11:54 PM
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um in my experience its either plug wires or a fuel pressure/plugged filter issue. i have one right now, i put plug wires on it and it got worse, so it needs a fuel filter...
Old Jan 18, 2005 | 07:50 AM
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i have new racing beat wires, new fuel pump, and new filter. i think it is not a fuel problem now, but was wondering how the motor would run with a bad ignitor. any one experienced this?
Old Jan 18, 2005 | 08:36 AM
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Originally Posted by scottystraub' date='Jan 18 2005, 05:50 AM
i have new racing beat wires, new fuel pump, and new filter. i think it is not a fuel problem now, but was wondering how the motor would run with a bad ignitor. any one experienced this?



bad ignitor = no spark at all.
Old Jan 18, 2005 | 09:07 AM
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will it run with only the leading, or only the trailing? if so how will it run?
Old Jan 19, 2005 | 08:43 AM
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It should run fairly well with only the leading, and hardly at all with only the trailing.
Old Jan 19, 2005 | 10:57 AM
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I had issues with a brand new fuel filter and a Holley red label fuel pump, filter cut my PSI down and it had a baaaaaaaaad top end miss. Replaced the fuel filter with a different brand and it went away, pulls strong up to 8g no prob.
Old Jan 19, 2005 | 11:19 AM
  #8  
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thanks for the help guys, i will check the filter and ignitors for spark, i also am going to buy some extra ignitors for spares and am looking at changing over to the dual coil leading do it yourself i have seen on the forum, looks better than buying a msd box and spending more $$
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