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Carb questions

  1. #1
    What the Hell is That? 72Hondo's Avatar
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    Default Carb questions

    So I want to down size my carbs. I have a SBC with a 144 Blower. It has duel 750's on there. Over Carburated? Yea! So I put a single 750 on there and i just cant get over the look of a single carb under a scoop. I Would like to go with a 750 DP but I think the pride for a duel set up is going to get to me.

    Any Suggestions?
    Quote Originally Posted by Kyle View Post
    Log off and go float, hang in the party coves, Show and shine on the trailer, fill up the boat, wax it, v-drive, jet, outdrive, and if you got a canoe and your reading this, you sir, need to phucking upgrade.

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Btnhtillidie View Post
    So I want to down size my carbs. I have a SBC with a 144 Blower. It has duel 750's on there. Over Carburated? Yea! So I put a single 750 on there and i just cant get over the look of a single carb under a scoop. I Would like to go with a 750 DP but I think the pride for a duel set up is going to get to me.

    Any Suggestions?
    Just curious what make you think its Over.... ? got 600s and 450s if you want to experiment ?

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    What the Hell is That? 72Hondo's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    Just curious what make you think its Over.... ? got 600s and 450s if you want to experiment ?
    It seems to have just a tad little bog out of the hole. When up on plane seems to run fine but if I am slowing down and let up off the gas it seems like it floods the engine and she will just up and die and you have to crank it a little bit to clear the fuel then it will start right up.

    I have some 550's that i am rebuilding i want to try. Both sets of Carbs are Edelbrocks and I want to try some Holley's Since I hear good things.
    Quote Originally Posted by Kyle View Post
    Log off and go float, hang in the party coves, Show and shine on the trailer, fill up the boat, wax it, v-drive, jet, outdrive, and if you got a canoe and your reading this, you sir, need to phucking upgrade.

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    Senior Member DuaneHTP's Avatar
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    A couple of 0-80575S Holleys will do the trick. They work well with that set up. But if the $644.27 ea. scares Ya,You could also use a pair of 0-80592S. These might ease the pocket book pain a little @ $383.14 ea. They work good too, just not quite as trick.
    This link lets you see what I'm talking about.
    http://www.holley.com/types/Supercha...arburetors.asp

    If you have questions, give me a call. We're a Holley Performance Products Warehouse Distributor. 417-858-8616
    These carburetors are built for blower applications and will solve the problems you are having with the Edelbrocks.
    Last edited by DuaneHTP; 04-04-2009 at 08:46 AM.

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    6th Street Mafia PrecisionTile's Avatar
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    I have a set of 550s powder coated white. I am looking to step up to a set of 750s for the new motor I am building. Would you be interested in a trade?

  8. #6
    What the Hell is That? 72Hondo's Avatar
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    any pics?
    Quote Originally Posted by Kyle View Post
    Log off and go float, hang in the party coves, Show and shine on the trailer, fill up the boat, wax it, v-drive, jet, outdrive, and if you got a canoe and your reading this, you sir, need to phucking upgrade.

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    6th Street Mafia PrecisionTile's Avatar
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    I will look through my pics and see if I have any if not I will take a few of the carbs tomorrow.

  10. #8
    6th Street Mafia PrecisionTile's Avatar
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    Her are the pics of the carbs They are alittle dirty but they clean up really nice and they work perfect. I had them on a 468 BBC make about 500hp. I just took them off about 6 weeks ago when I pulled the motor.
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  11. #9
    Senior Member OUTLAW HALLETT's Avatar
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    not to step on any toes but i have a set of 4150 650 that i might be into trading , if that is something your interisted in ,, let me know

  12. #10
    cfm
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    Quote Originally Posted by Btnhtillidie View Post
    So I want to down size my carbs. I have a SBC with a 144 Blower. It has duel 750's on there.
    I've never seen 2 carbs on a 144. Do you have pics you can post ? Interested in seeing the adapter that's used.

    Can you list all the motor details (including top rpm used at) so people can help you with a possible better carb choice ?

  13. #11
    What the Hell is That? 72Hondo's Avatar
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    Quote Originally Posted by cfm View Post
    I've never seen 2 carbs on a 144. Do you have pics you can post ? Interested in seeing the adapter that's used.

    Can you list all the motor details (including top rpm used at) so people can help you with a possible better carb choice ?
    This is the best pic I could find of the adapter. its a B&M.



    as far as the specs go I'm still tryign to find them out as far as pistons, cam etc. There written down on a paper that I'm trying to find. I am not the original owner. The owner cant remember what's in there except and Isky hyd. roller cam.
    Quote Originally Posted by Kyle View Post
    Log off and go float, hang in the party coves, Show and shine on the trailer, fill up the boat, wax it, v-drive, jet, outdrive, and if you got a canoe and your reading this, you sir, need to phucking upgrade.

  14. #12
    cfm
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    Interesting. Thanks for the pic.

    Honestly, I would go with what typically works. One carb set up for the blower. Any SC carb 800cfm to the 950 should work fine. Assuming the engine has some nuggets (good power) without the blower.

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