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Emission control information

Discussion in 'The Garage' started by aknight_sa, Aug 11, 2006.

  1. aknight_sa

    aknight_sa 1/2 ton status

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    hello all,i need to know the standard standard RPM, Dwell Angle and advance settings for a 454 engine with 4-brl carb...
     
  2. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    '73 Ld=28-32* 0.019 Point Gap 10btdc 900rpm Manual, 600rpm Auto
    '73 Hd= Same But Vac Hose Disco'd And Marked(manual). 700rpm/700rpm
    '74 Ld=29-31* 0.019" 10btdc 800 Manual, 600 Auto
    '74 Hd= Same But 8btdc 700/700rpm
     
  3. aknight_sa

    aknight_sa 1/2 ton status

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    thanks for the values... just for my knowldege.. can you please explaine them?
     
  4. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    First numbers are the dwell degrees. Then onviously the points gap if you're doing it by gap rather than dwell angle. Then there's the spark advance 'before top dead centre'. Then the idle settings for manual or auto trans as I've no idea what truck you have. Same goes for listing light duty and heavy duty. Your profile says it's a BBC in an '81 so you should have HEI....so you don't need any of the above info!
    Hope that helps.
     
  5. aknight_sa

    aknight_sa 1/2 ton status

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    thanks for the info,

    another question here, first.. where can i get that information? any website? as i would like to look at other settings for different cars.. also, i need to know where is the Tach connection on the distributer..

    Thanks
     
  6. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    I got that from a Chiltern manual. But if you do a google you'll find anything. Just type in model+ spec or tune up info. Things like that usually get good results. You can often just type in a VIN number and get good results.
     

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