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carb questions...

Discussion in 'The Garage' started by MEPR, Mar 4, 2004.

  1. MEPR

    MEPR 1/2 ton status

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    Alrighty. whith a stock 350 (maybe headers) would it be ok to run a 2bbl to get better econimy? Or would it be better to run a smaller 4bbl? Thanks
     
  2. bajaviking

    bajaviking 1/2 ton status

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    I think runnning a q-jet which have small primaries will be more efficient as long as you keep your foot out of it and don't open the secondaries. As an added bonus the q-jet is the best carb for wheeling.
     
  3. MEPR

    MEPR 1/2 ton status

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    ok cool just whanted some advance info. Thanks
     
  4. 84_Chevy_K10

    84_Chevy_K10 Banned

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    A two barrel carb due to the large bores tends to get horrible mileage compared to a 4 bbl.
     
  5. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    [ QUOTE ]
    A two barrel carb due to the large bores tends to get horrible mileage compared to a 4 bbl.

    [/ QUOTE ] Ditto...
     
  6. R72K5

    R72K5 Banned

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    2bbl carbs tend to have problematic tendencies also, rare to see one that ever runs right, especially the 77-79 ones with half moon shaped air horn opening
     
  7. mountainexplorer

    mountainexplorer 1/2 ton status

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    I second the Q-jet.
     
  8. crawlink5

    crawlink5 1/2 ton status

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    I have a Q-jet on my '78 w/400sb/700r4. I agree that a 4 barrel will get better economy than a two. But mine runs perfect and sucks on MPG.

    What about an Edelbrock Performer 600? It has smaller primaries which should be more efficient at lower RPMs. Maybe more MPG? I'll be trying one this weekend - I'm rebuilding it now. I'll post back with comments on how I think it did.
     
  9. dyeager535

    dyeager535 1 ton status Premium Member

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    You talking edelbrock square bore? ( Dunno the differences in them) If the bores are identical, a 600 will still have larger primaries than a Q-jet. /forums/images/graemlins/smile.gif
     

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