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quick??????????

Discussion in 'The Garage' started by down4thakrown, Nov 29, 2005.

  1. down4thakrown

    down4thakrown 1/2 ton status Premium Member GMOTM Winner

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    tryin to pass emissions, passed loaded hydrocarbons and O2's but didnt pass the idle hydro and O2's. it was 547/350 and 6.99/4.00. could i just retard my distributor to get them down or should i lower the idle? both??
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Try turning the idle up instead. My old 355 ran dirtier the lower I set the idle. At 600 rpm idle it would fail over and over again on the idle test. When I bumped the idle to anything over 750 rpm it'd pass with flying colors...


    Rene
     

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