Holley Floats
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Holley Floats

  1. #1
    Senior Member Ahsumtoy's Avatar
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    Default Holley Floats

    I have a 496 bbc with two 1050 dominators sitting sideways on a tunnel ram. The engine makes 800hp, and I'm using a Clay Smith 140gph mechanical pump, and the pressure is set at 7.5#. Here's my problem, the boat launches hard then lays down then accelerates again. I was told that the side mounted copper floats I have may be causing the problem by cutting off the fuel at the launch. It was suggested that I change to center mounted floats, the black notched ones. What do you think?
    Last edited by Ahsumtoy; 10-25-2008 at 10:05 AM.

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  3. #2
    Senior Member Pattymelt18's Avatar
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    Thats what i use call c&j get the weighted ones they work great.

  4. #3
    No Sandbar To Far sanger rat's Avatar
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    I run the notched floats. Helps the float level in ass heavy boats.
    Quote Originally Posted by One More Year View Post
    The only blab's I will even be a part of is just when it is me they are talking about. Aaaah yes I can see a few good looking shiny tall deck motors on the beach, with barely enough fuel to get back to the launch saying, "Holy crap how fast you think that Daytona was going man? That's like the 20th time he's gone by today?"

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  6. #4
    Senior Member The Violater's Avatar
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    Quote Originally Posted by Ahsumtoy View Post
    I have a 496 bbc with two 1050 dominators sitting sideways on a tunnel ram. The engine makes 800hp, and I'm using a Clay Smith 140gph mechanical pump, and the pressure is set at 7.5#. Here's my problem, the boat launches hard then lays down then accelerates again. I was told that the copper floats I have may be causing the problem by cutting off the fuel at the launch. It was suggested that I change the floats to the black notched ones. What do you think?
    Do you have a fuel log , or just lines and a T? With no log and by-pass regulator you could be running the lines dry.
    / The Few The Proud TheBlown

  7. #5
    Super Moderator HammerDown's Avatar
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    A 496 w/800 HP...give some engine details man!
    <img src=http://www.performanceboats.com/gallery/data/500/medium/06-30-11_1234.jpg border=0 alt= />

  8. #6
    Senior Member Ahsumtoy's Avatar
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    Quote Originally Posted by The Violater View Post
    Do you have a fuel log , or just lines and a T? With no log and by-pass regulator you could be running the lines dry.
    No fuel log. I just have -6 hoses from the Product Engineering fuel regulator to each bowl. The regulator is a by-pass but I have the return plugged. Could it still be causing the fuel shortage?

  9. #7
    Senior Member Ahsumtoy's Avatar
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    Quote Originally Posted by HammerDown View Post
    A 496 w/800 HP...give some engine details man!
    It's not a GM 496. It's an all aluminum Keith Black block with Dart heads, JE pistons 14.5:1.

  10. #8
    Senior Member H20MOFO's Avatar
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    I'm so dumb,I thought notched floats were to clear jet extensions?????
    Another Hot Boat refugee

  11. #9
    Senior Member Ahsumtoy's Avatar
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    Quote Originally Posted by H20MOFO View Post
    I'm so dumb,I thought notched floats were to clear jet extensions?????
    Yes they are, what's your point?

  12. #10
    Senior Member H20MOFO's Avatar
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    I thought your carbs were mounted sideways? Or are you a roundy round guy?? Nevermind...Sorry.
    Another Hot Boat refugee

  13. #11
    Senior Member Ahsumtoy's Avatar
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    Okay, I think I'm missing something here. Yes, my carbs are mounted sideways. Are the center mounted floats not for sideways mounted carbs, or is it the extensions? I'm just trying to understand....

  14. #12
    Senior Member H20MOFO's Avatar
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    When I bought my jet extensions and notched floats it was for a different reason than why you did/are. I bought them for the back bowl of my holly. (carb mounted fwd.). Like I said Sorry....nevermind
    Another Hot Boat refugee

  15. #13
    No Sandbar To Far sanger rat's Avatar
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    Now I'm lost. I was talking about the roundy round floats not the ones for the jet extensions.
    Quote Originally Posted by One More Year View Post
    The only blab's I will even be a part of is just when it is me they are talking about. Aaaah yes I can see a few good looking shiny tall deck motors on the beach, with barely enough fuel to get back to the launch saying, "Holy crap how fast you think that Daytona was going man? That's like the 20th time he's gone by today?"

  16. #14
    Senior Member Ahsumtoy's Avatar
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    Yeah, I'm getting lost too! All I really wanted to know is if the black notched, or non-notched floats, that are center mounted will prevent the float from shuting off fuel when my boat launches. The current brass floats are side mounted and with the carbs being mounted sideways "I think" they are shuting the fuel off as the gas surges to the rear under a launch. I don't know if there is any advantage in having jet extensions? Additionally, I wonder if my pluging the bypass port on my regualator may be causing the problem, maybe flooding the engine? Any help or suggestions are greatly appreciated.

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