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Old 09-30-2010, 05:58 PM   #1
Synergic
 
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Default Holley needle/seat question

I'm rebuilding a Holley for a friend. Got the kit and everything is cool and fits except the needle/seats are slightly different. Ones that came out of the carb have a slot screw head and the new ones just have a threaded hole. My first thought was the top part of the old ones had to unscrew and be put in the new ones. But so far all I've gained is scoring the brass on the old one with pliers trying unsuccessfully to unscrew it.

Here's what I'm looking at: Old one on the left, new on right.





Did the kit give me the wrong needle/seats or am I supposed to swap something? Never been deep into a Holley 'til now.
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Old 09-30-2010, 07:33 PM   #2
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Default Re: Holley needle/seat question

yes it did
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Old 09-30-2010, 07:44 PM   #3
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Default Re: Holley needle/seat question

Looks like the wrong part to me.....
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Old 09-30-2010, 07:58 PM   #4
gasser

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Default Re: Holley needle/seat question

The needle on the left is an after market one, uses an O ring and thick nut only. The one on the right is stock Hoilley, uses two gaskets, thin nut and lock screw.

The one on the left uses the nut as the lock down device, and the screwdriver slot to adjust the height.

The one on the right uses the screw as the lock down device, and the nut as the adjuster.

The one on the right is the better one of the two.
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Old 10-01-2010, 05:34 AM   #5
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Default Re: Holley needle/seat question

Did that come from a Holley Kit, or generic?
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Old 10-01-2010, 06:47 AM   #6
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Default Re: Holley needle/seat question

It's a Holley TricKit. Markings on the box say it's made by Holley Performance Products. Autozone part number 37-119.

Quote:
Originally Posted by gasser View Post
The needle on the left is an after market one, uses an O ring and thick nut only. The one on the right is stock Hoilley, uses two gaskets, thin nut and lock screw.

The one on the left uses the nut as the lock down device, and the screwdriver slot to adjust the height.

The one on the right uses the screw as the lock down device, and the nut as the adjuster.

The one on the right is the better one of the two.
So I guess we need to buy those lock screws. I guess the kit expects us to have them already.
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'86 Cutlass Supreme with '69 Olds 350, .030 Flat Top Pistons, #7 heads, 10.1:1 compression, 1977 800 CFM Quadrajet, Modified A4 Intake, Dynomax headers, Cherry Bomb Turbo II Mufflers, HEI, TH200c. WIP.
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Old 10-01-2010, 04:45 PM   #7
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Default Re: Holley needle/seat question

Ok got it figured out. The thin nut and screws are available from Holley. I know it's strange asking a Holley question on here but I knew you guys would know. Thanks!
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'86 Cutlass Supreme with '69 Olds 350, .030 Flat Top Pistons, #7 heads, 10.1:1 compression, 1977 800 CFM Quadrajet, Modified A4 Intake, Dynomax headers, Cherry Bomb Turbo II Mufflers, HEI, TH200c. WIP.
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Old 10-01-2010, 05:58 PM   #8
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Default Re: Holley needle/seat question

Id call Holley and pitch a bitch, see if they'll send the parts for free.
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