#$@#$@#$$!$!!!!!

Discussion in 'Holley' started by Stage1 Jeff, Apr 7, 2007.

  1. Rick Henderson

    Rick Henderson Well-Known Member

    I am not sure on the exact distance on the vent to top, but I did hear of some folks cutting them down a bit. I am sure someone will chime in that knows the correct answer.

    I had a 2-3 inch drop base (don't remember for sure), so it was really close on the vents. I even switched to a top that had the screen on the top, and it still had the same problem with being too rich with the cover on.
     
  2. Stage1 Jeff

    Stage1 Jeff Guest

    I hadn't thought of that..... so where can I find the right air cleaner?? anyone got an extra one I can have??
    here's a pic of my setup, are these the vents?? circled in pic
     
    Last edited by a moderator: Jul 25, 2007
  3. Johnny Angel

    Johnny Angel Well-Known Member

    Boy Jeff, I would sure hope you have enough space. Your filter looks to be 3 or 4 inches tall. I for one will be watching your thread, because I have a new engine going in, with a drop base, that looks like yours. I will be using a 3 inch filter for hood clearance. Good luck.


    Regards, John.:Do No:
     
  4. DaWildcat

    DaWildcat Platinum Level Contributor

    Yes, those are the vents. With that drop base you'll have plenty of vent clearance even with a flat lid. Holley suggests no less than 3/4" clearance above the vent.

    Devon
     
  5. Stage1 Jeff

    Stage1 Jeff Guest

    so,My current set up is ok?? I may try making an air box, would it also require an air filter? I may go as far, as to remove the choke plate completely,or would doing so cause me more problems?
     
  6. Rick Henderson

    Rick Henderson Well-Known Member

    You have PLENTY of room. Mine was less than a 1/4" or touching on the lid. Well, it rules that out.
     
  7. Stage1 Jeff

    Stage1 Jeff Guest

    yep, it sure does.
    so I guess it's concentrate on jetting down, check voltage to the choke/adjust it,check voltage to my MSD box. am tempted to do away with the choke altogether
     
  8. gsxbuildernut

    gsxbuildernut Well-Known Member

    I can remember having the same problems on my 66 nova with a holley 750, I never did get it to tune lean enough and I changed everything. I put a demon on it and the exhaust smelled like it would pass emisions and the plugs cleaned up to the point I was worried about being too lean. I will not buy a holley again because it wasn't the first carb to give me fits. I'm sure there are great ones but I haven't owned one of them. I have heard that there are problems in some of the metering plates when they are the cast type, hard to say but I feel your pain. Hope you figure it out. The past three engines I have done recieved Demons and so far I never had to break one down to change anything. Good luck!!


    Steve :TU:
     
  9. Stage1 Jeff

    Stage1 Jeff Guest

    thanks!!
    I'll keep at till I get it the way I want it :TU:
     
  10. Schurkey

    Schurkey Silver Level contributor

    1. WHEN is the carb rich? Idle? Cruise? WFO? Cold? Warm?

    2. Are the idle mixture screws set to 3 1/2 turns because that's where the engine runs best, or because it seemed like a good number of turns?

    3. I've never seen a Holley choke pulloff piston that was adjusted right from the factory. Guys go nuts cranking the choke coil trying to fix "gargles on gasoline just after cold startup" and the choke coil isn't the problem--it's the pulloff piston. What makes this even more fun is that Holley has practically buried the instructions for adjusting the piston--and they're not even included when you buy an electric choke conversion kit from 'em.

    Overall, I get the feeling that adjusting the idle mix and the pulloff piston would clear up a lot of your trouble.

    I'll have to dig around to find the link to the pulloff adjustment instructions.
     
  11. Stage1 Jeff

    Stage1 Jeff Guest

    1. problem is when cold, first start of day. plugs carbon fouled
    2.mixture screws were set 3 1/2 turns using vacuum gauge,engine ran good(I could re do them if I have to)
     
  12. doc

    doc Well-Known Member

    With a holley, float level ,power valve, choke setting, and the bleed orfice determines how rich or lean the carb will run. Now, that said, you have set the float level, and the power valve is ok, I would open up the primary air bleeds until the carb leans out. BE VERY CAREFULL WHEN DOING THIS. GO SLOWLY, the air bleeds determine how much air is mixed with the fuel in the idle circuit and if you drill out too big the only way you can correct is by soldering up and redrilling. or get new ones from holley.
    When you set the choke use a 1/8 drill as a gage, placing it at the bottom of the choke plate against the carb body. You might consider using a different spark plug. suggest motor craft or autolite.
     
  13. Stage1 Jeff

    Stage1 Jeff Guest

    I already have a fresh set of NGK FR5 V power plugs in it now. I had these on hand, so I'll run these for now
     

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