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Discussion Starter · #1 ·
i know i know, go to fuel injection, but i'm broke and in college, so i have to deal with the holley, but has anyone heard of putting tubing over the two vents that stick up at either end of the main body and runin the lines down to the edge of the frame to keep it from flooding on angles?
 

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I ran a HP750 for a while and they do make extended tubes or you can use tubing like Hooder said...I stood my YJ on the rear bumper and flooded the carb...needless to say when I restarted it started...The fire I mean...after I melted a $90 carbon fiber air cleaner and replaced my wiring harness...I switched to a Q-jet...I just found a complete SS454 FI set up including cylinder heads for $300.00 so I will be goin FI. <IMG SRC="smilies/bounce2.gif" border="0">
 

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Discussion Starter · #4 ·
what i was planning on doing was putting a piece of fuel line over each of the tubes and connecting them and running the one hose down to the frame rail
 

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I dont think I would run it down...go as high as possible...maybe up to the hood with a loop in it and even a roll over vent at the end
 

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IM PRETTY SURE IF YOU EXTEND THOSE TUBES THE GAS WILL STILL POUR IN AT AN ANGLE.......IT WILL HELP AT A SEVERE ANGLE THOUGH.......I WOULD CONNECT THE TWO THEN CUT A HOLE IN THE MIDDLE AT THE TOP OF THE TUBE.........

IF YOUR NOT RUNNING A LOT OF CUBES AND OR A LOT OF RPM.....YOU CAN LOWER THE FLOAT .......THE MAIN JETS THAT NEED TO BE SUBMERGED ARE AT THE VERY BOTTOM OF THE BOWL.......
 

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Discussion Starter · #7 ·
yea, it's only a 304, i havn't gotten a vacuum gauge to see what i'm pulling yet, but i have adjusted the floats to run a little lower, and i'm runnin 66 jets, its a 600 cfm vacuum secondary, right now i'm havin problems with gas coming out of the transfer tube between the bowls <IMG SRC="smilies/pissed.gif" border="0">
 

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Go get a wrecking yard motorcraft 2bbl for off-road. Do a rebuild on it, you'll be happier.
 

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Discussion Starter · #9 ·
i've heard good things about the motorcraft carb, but i want to keep my 4 barrell, a bit better fuel economy, and it can be tuned easier, so i'm lookin for a quadrajet now
 

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Contrary to most peoples experience, I have been running a Holley with absolutely no problems, about 8 years now. No matter whether its a 4150 or 4160. I used copper tubing to entend the bowl vents higher into the air cleaner. Pinch then ends together, almost shut. Its not like it has to be able to breath, just releive vacuum and pressure from changing fuel levels. Spring loaded needle/seat, adjust the float levels so that you have to shake the car to get the fuel to spill out of adjuster plugs.
 

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I read in a book by David Vizard, the guy that wrote all those How to rebuild your sbc etc books, that he built a carb for a desert racer, I think using a 2 L ford, that used a holley 2bbl, no float, instead a tube running up from the bottom of the float bowl, top edge at desired fuel level, hooked up to an electric fuel pump on a return line to the fuel tank. The stock mechancial pump kept the fuel level up to the level of the return tube, the electric pump pulled out any excess. He also used some fuel cell foam in there to reduce slosh. He said this carb would run under extreme angles and vibration. Interesting idea, would be simple to try. The electric fuel pump must outflow the mechanical for this to work. I guess fuel injection made this Mcgyerish idea obsolite. Cool idea though.

Tim
 

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I sent an email to you wiht instructions. 1/4" copper tube cut to length to extend bowl vents. Pinch the ends almost closed. Us spring loaded needle seats and make sure you do not have composite floats. They are trouble looking for a place to happen. Use floats made of plastic or metal. Adjust float levels so that the vehicle must be shaken to cause fuel to spill out the adjustment sight plugs.
 
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