1. mr. fix it

    mr. fix it Old Man with a Hat

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    I remember in my younger days doing a similar thing leaving the stock 2bbl on a mildly upgraded 351w Ford engine
    What you are describing brings back memories of drivability issues with that engine.
    Definitely sounds like fuel starvation

    be careful with running lean if you’re pushing the engine trying to have some fun with it until you can update to a 4bbl setup

    The 2bbl isn’t up to the task
     
  2. Rooster34

    Rooster34 Member

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    You must have posted before I updated this post the other day. I ended up get a holley 500 2 bbl but I'm having issues with that. If you got back to the first page and go to the bottom I explain what's going on. I just replaced the squirter and the jets, jets are now at a 76 and the squirt is a 31. If I'm at a stop and punch the gas she stalls
     
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  3. mr. fix it

    mr. fix it Old Man with a Hat

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    Ok
    I confess that I didn’t read every response
    Will think on it and see if I can suggest something else
     
  4. Rooster34

    Rooster34 Member

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    ---UPDATE---

    So I started to play around with the Holley 500 over the past few days, as mentioned above I put 76 jets in and I upped the squirter to a 32 from a 31. She still needs more fuel so I'm going to up it to a 37 get the 50cc accelerator pump kit and she how she likes that and draw down if needed or draw up if needed. I also upped the timing to 38 deg. At 3000 rpm no ping or detonation and drive ability seems to be getting better. I'll keep you guys updated
     
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  5. Rooster34

    Rooster34 Member

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    ---UPDATE---
    Alright guys and gals, so after doing a little but of research the holley 4412 comes standard with a 50cc accelerator pump, so I am going to up the squirter to a 37. I'm not sure on upping the 76 jets yet, and here's why, at a stop light idling it idle pretty smooth but there is a very subtle "blip/skip/stumble" nothing that would make it stall and when cruise with light pressure on the pedal she is as smooth as goose poop. Should I up the jets? Is that the "skip" I feel when in drive at idle being too lean or too rich? All your help is appreciated!
     
  6. Davea Lux

    Davea Lux Old Man with a Hat FCBO Gold Member

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    Skip at idle is not controlled by the main jets. Try opening up the idle jets about 1/4 turn and see of the idle smooths out.

    Dave
     
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