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Kirkham Motorsports

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Old 07-24-2016, 11:36 AM
cobra 53's Avatar
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Location: Denia / SPAIN, ESP
Cobra Make, Engine: NAF 289 Blue/White strips
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Default Carb Boosters Info

Hi all,
I would like to replace the Straight Boosters on my Holley 4150 dp into Down Leg Boosters.
Is someone able to explain to me the different specification numbers like for instance:

Down Leg 0.600
Down Leg 0.500 I.D.
Down Leg 0.120
Down Leg 0.135 oriffce
Down Leg 45R-1-11

Looking forward to your replies - Thanks!

Rico
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Rico, NAF 289

Last edited by cobra 53; 07-25-2016 at 02:10 AM..
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Old 07-24-2016, 04:21 PM
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Swedging tooling sold here. Press style and C-clamp style.
78751 Vertical Mill Booster Installation Tool [] - $235.00 : BLP Products

7875 Manual Booster Installation [] - $225.00 : BLP Products

78751-6 Booster Leveling Tool [] - $55.00 : BLP Products

[ame]https://www.youtube.com/watch?v=kz7oZbtB3S8[/ame]


I'd contact this shop since they've been doing customs Carbs for a few decades. Services
They would def have your answers.
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