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Old 05-25-2009, 05:37 PM   #1
AndrewM6097
 
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Default Gas pouring out of carb

Just got a carb rebuilt for the 302 on the mustang at napa. Worked nice for a day and now gas is shooting out of the carb. Changed the float, tapped on the bowl and no luck. Is there anything else i should check??
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Old 05-25-2009, 06:26 PM   #2
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CHECK FLOAT ADJUSTMENT AND THE NEEDLE
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Old 05-25-2009, 06:41 PM   #3
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Honestly i dont know much about carbs... how exactly do i check those things?
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Old 05-25-2009, 06:54 PM   #4
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If it worked OK for a day and now it's shooting out of the carb it probably wont be a float adjustment. It probably has a peice of trash in between the needle and seat/ Has the car been sitting for an extended period of time?
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Old 05-25-2009, 07:00 PM   #5
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Yes the car did sit for a while so i guess that is a possibility.
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Old 05-25-2009, 07:23 PM   #6
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also what is fuel pressure set at??
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Old 05-26-2009, 09:55 AM   #7
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I'm using a mechanical fuel pump, dont know if that makes a difference or not...
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Old 05-26-2009, 01:58 PM   #8
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You need your fuel pressure to be a max of about 6.5psi at idle.
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Who cares how much horsepower it has, all that matters is how fast it goes!

13.20's with 2.25-2.30 60's, 40+ year old suspension sucks!
Best trap 107.11mph, we'll see what the new intake/carb setup does.
12.80 at 110.5mph NHRA DA corrected
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Old 05-26-2009, 02:22 PM   #9
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Do i need a FPR regulator with a mechanical pump? How can i adjust the fuel pressure if need be?
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Old 05-26-2009, 02:27 PM   #10
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An adjustable FPR. Some pumps are internally regulated to the correct pressure, but it's not always easy to check without a gauge. You need to check yours though. But you said it was fine at first, so either something fubar'd or you got trash in the needle and seat like Portmaster mentioned.
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Who cares how much horsepower it has, all that matters is how fast it goes!

13.20's with 2.25-2.30 60's, 40+ year old suspension sucks!
Best trap 107.11mph, we'll see what the new intake/carb setup does.
12.80 at 110.5mph NHRA DA corrected
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