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Holly 4bl with no float adjustment

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Dec 25, 2017 | 11:33 AM

#1

bigcrunch

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Tuned

Joined: May 2007

Posts: 429

Likes: 2

Holly 4bl with no float adjustment

One of my F's has a holley 4bl with no float height adjustment ability, thats a new one to me and before I take it apart can it be adjusted internally?

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Old

Dec 25, 2017 | 12:57 PM

#2

Tedster9

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Joined: Apr 2002

Posts: 19,311

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From: Waterloo, Iowa

That's the way it's done. Holley was ingenious with that. Have to be careful. Don't jam the needle into the seat, it's safer to remove a float and carefully bend the tab.

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Dec 26, 2017 | 08:07 AM

#3

Destroked 450

Cargo Master

Joined: Dec 2015

Posts: 2,549

Likes: 331

From: Harned, Ky

I've ran across a couple of those, take's a special needle valve so normal kit won't work and have to make adjustments with the bowls off.
Swapped the bowls on one to standard Holley bowls

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