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Thread: 454 issues...
          
   
   

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  1. #1
    camaro mike is offline CHR Member Visit my Photo Gallery
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    Dec 2008
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    454 issues...

     



    i just built up a .030 over 454 and haave some small tuning issues. when you are driving down the road, you can feel a miss, but it doesnt pop out the exhaust. i came home, checked the timing, and it was on ( 10 degrees),so i checked the plugs. they are all light brown. i have a vacuum gauge in the car, and when you are driving it reads a steady 20 inches. at idle it waves from 15 -18 inches. i changed plugs, cap and rotor. it has a pertronix "eye" in a point style distributor, and a vacuum advance that maxes out at 20 inches of vacuum. does this sound like a bad distributor? i am lost on this one!

  2. #2
    ted dehaan's Avatar
    ted dehaan is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 32ford5w,60fordstarliner,55chevy65corvai
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    pull the air cleaner off trans in n. or park hold rpm steady at about 2k if it pops in the intake you wiped out your new cam...ted
    I'LL KEEP MY PROPERTY, MY MONEY, MY FREEDOM, AND MY GUNS, AND YOU CAN KEEP THE CHANGE------ THE PROBLEM WITH LIBERALISM IS SOONER OR LATER YOU RUN OUT OF OTHER PEOPLES MONEY margaret thacher 1984

  3. #3
    moter is offline CHR Member Visit my Photo Gallery
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    Is it a "bounce" on the vacuum gauge or just slow movement? You say "a miss"...does it feel like it drops a cylinder for a second? Do you feel this just on acceleration? Or steady speed?

  4. #4
    camaro mike is offline CHR Member Visit my Photo Gallery
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    it moves kind od slow, but it " bounces " fronm one to the other reading. i feel it when cruising, not under a heavy load i can accelerate above it and it doesnt seem to be as bad, but still there. at low speed you can hardly hear or feel at all. you can hear it kind of breaking up while cruising. not as bad as a total dropp in power



    i did put it in park, pull off the filter, and run it to 2k. nothing...... it only happens under load.

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