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Thread: carb. problem???????

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  1. #1
    norris is offline Registered User Visit my Photo Gallery
    Join Date
    Mar 2005
    Car Year, Make, Model: 1970 chevy c-10

    Angry carb. problem???????


    I have a 1970 chevy pickup with a 350 mild cam, intake,holley carb. etc. The problem i have is that it misses at about 2500 rpm. and backfires when slowing . never had this problem before. I have read some books and tried a few things and still not working . maybe some one could help!!!!

  2. #2
    thesals's Avatar
    thesals is offline CHR Member Visit my Photo Gallery
    Join Date
    Feb 2004
    san diego
    Car Year, Make, Model: 66 mustangFB, 69 econline Drag Van

    if that doesn't help and trying to tune the carb a lil doesn't help... pull the valve covers and check your rockers, if the slots have shiny spots on the ends, then your "mild" cam is lifting higher than allowed by the rocker arms... its a common problem with juicing up fords and a possible problem with chevy's as well.... if you have roller rockers... disregard what i said

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