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  1. O

    Reading My Spark Plugs

    You can swap the ignition wire from cylinder #1 with a spare ignition wire just to see if it runs better and do the same thing with cylinder #3
  3. O

    Reading My Spark Plugs

    If I had spark plugs that looked like that I would check the spark plug wires for cylinders 1 & 3 Did you check the firing order? 1-8-4-3-6-5-7-2
  4. O

    My Carburetor journey.

    The 625 CFM Carter AVS carb was original on 383 4bbl cars, so no jet changes required. If you can find a good used original carb it will work really good right out of the box.
  5. O

    Intake manifold height

    This Mopar M1 aluminum RB intake manifold is the only one that is the stock height, it has an operating range from idle to 5800 rpm part# P4529118 Last produced late 1990s but I have seen used ones for sale.
  6. O

    Best six pack intake gaskets?

    The only other intake gaskets I know of that fit my original Mopar valley pan almost perfectly is from Hughes Engines part# HUG 3268
  8. O

    Best six pack intake gaskets?

    Use gasket sealer on all 4 corners of the valley pan.
  9. O

    Edelbrock AVS2 on stock dual-plane 383 manifold

    Yes the AVS2 carburetor will fit an original intake manifold, and the spacer will also fit both carburetors. The AVS2 is really an AFB carb.
  10. O

    My Carburetor journey.

    Yes it's legit. Weber was producing the carburetors with the Edelbrock name already attached. Picture of an Edelbrock Carburetor Carter Competition Series
  11. O

    What carb for 440

    The Carter AVS
  12. O

    What carb for 440

    Jonas, I believe you did not test one of the best squarebore carburetors.
  14. O

    Is a Edelbrock 1406 are good carb?

    This one is hard to read ..... it could be 4298S
  15. O

    Lack of Power

    If you can get Champion J-11Y spark plugs for free that would be a bonus.
  16. O

    Lack of Power

    So you had a leak before and fixed it by replacing one head gasket or both head gaskets?
  17. O

    Six Pack Air Cleaner

  18. O

    Silly question - 6 pack 440

    My car ran too rich with the same mechanical fuel pump when I replaced it there was no more running too rich.
  20. O

    Silly question - 6 pack 440

    That looks like a hi-po Carter fuel pump it can put out 7-1/2 psi plus an electric fuel pump that could be why it's running too rich.
  21. O

    Silly question - 6 pack 440

    What fuel pump are you using?
  22. O

    My Carburetor journey.

    That hole looks like the right spot for a hot idle compensator.
  23. O

    Retiring The Six Pack - New Manifold Recommendations

    Holley changed the inside of a Demon carb that could be why it came in second.
  24. O

    Retiring The Six Pack - New Manifold Recommendations

    On my 440 4 speed car I used a Edelbrock performer intake 2191 with a ThermoQuad carb the range is idle to 5000 it made a ridiculous amount of torque. I never tried the RPM intake.
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