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Holley Needle/Seat

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Old 11-14-2017, 11:58 AM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Holley Needle/Seat
I've recently cleaned the needle/seat twice unsuccessfully (and adjusted float level): the driver's side booster leaks with the engine off which causes a small gas pool on the manifold. Time for a new needle/seat or is there another issue at hand?

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Last edited by JamesC; 11-14-2017 at 01:19 PM.
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Old 11-14-2017, 01:00 PM
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Engine: 4.8 LR4
Transmission: T56
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Re: Holley Needle/Seat
I don't know that much about carbs, but that may just be a gasket issue? The gasket under my set screw on my Holley was bad and gas would leak out from under it even with the float level set properly
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Old 11-15-2017, 06:23 AM
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Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Holley Needle/Seat
How hot is your fuel line after a shutdown?
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Old 11-15-2017, 06:35 AM
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Join Date: Aug 1999
Location: Lawrence, KS
Posts: 19,282
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Holley Needle/Seat
Originally Posted by sofakingdom
How hot is your fuel line after a shutdown?
Yesterday, I ran the car long enough for the choke to go off, then shut down, so I wouldn't think the line would have been very hot. Never an issue in the past at any rate.

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Old 11-19-2017, 09:13 PM
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Join Date: Aug 1999
Location: Lawrence, KS
Posts: 19,282
Received 93 Likes on 68 Posts
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Holley Needle/Seat
Replaced the needle/seat and shot some carb cleaner down the air bleeds (I wish I would have tried that first). Currently no leaking. Fingers crossed.

All good.

JamesC
Last edited by JamesC; 11-24-2017 at 09:13 PM.
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