















80 Carter Drive
Guilford, CT 06437-2116
Phone: (203) 453-6571
Tech Line: (203) 458-0542
Fax: (203) 453-6906
Copyright © 2002 Moroso Performance Products, Inc.
All Rights Reserved.
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FUEL SYSTEM EQUIPMENT
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Carburetor Mounted 2300/4100 Series
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 No. 64927 |
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- The answer to your throttle return spring linkage problems if you're running a 2300/2305 series two-barrel or 4150/4160 series four-barrel Holley® carburetor
- Designed and built rugged enough for competition, yet it's polished chrome finish is suitable for the finest show car
- Includes one set of heavy and one set of light springs
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| No. | Description/Application |
| 64927 | Throttle Return Spring Kit, 2300/4100 Series Holley®, Carb Mount |
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 No. 64929 |
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- Pack of two stainless steel springs can be used as spares or
replacements for Moroso Throttle Return Spring Kit Nos.
64925, 64926 and 64928
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| No. | Description/Application |
| 64929 | Throttle Return Springs |
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Manifold Mounted Chevy V6/V8
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 No. 64922 |
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- Provides positive throttle return required by several sanctioning bodies
- Each kit fits Holley® 2 or 4 bbl single carb applications
- Includes one set of return springs
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| No. | Description/Application |
| 64921 | Throttle Return Spring Kit, Fits SB-2 Intake Manifold |
| 64922 | Throttle Return Spring Kit, 18° Small Block Chevy Cylinder Heads, Manifold Mount. 5-7/16" Tall |
| 64925 | Throttle Return Spring Kit, Small Block and 90° V6 Chevy, Manifold Mount. 1-13/16" Tall |
| 64926 | Throttle Return Spring Kit, Big Block Chevy, Manifold Mount. 1-13/16" Tall |
| 64928 | Throttle Return Spring Kit, Tall Version to facilitate throttle return on spacer equipped Small Block and 90° V6 Chevy engines, Manifold Mount. 4-3/4" Tall |
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Carburetor Linkage Bushing Set
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 No. 64920 |
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- Steel linkage bushing set allows the fitting of a 1/4" fastener to the 1/2" dia. hole found in the throttle linkage plate of Holley® four barrel carbs
- Split bushing design permits simple installation and eliminates the sloppiness present when rubber bushings are used
- Gold iridite steel finish
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| No. | Description/Application |
| 64920 | Carburetor Linkage Bushing Kit, Holley® 4 bbl carbs |
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Carburetor Mounted 4500 Series
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 No. 64923 |
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- Clears most air cleaner combinations and can be used with dual carbs
- Made from sturdy 14-gauge steel and finished in hand-polished chrome
- Kit includes heavy and light sets of stainless steel return springs, all mounting hardware, and complete installation instructions
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| No. | Description/Application |
| 64923 | Throttle Return Spring Kit, Holley® 4500, Carb Mount |
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4500 Dominator & King Demon
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 No. 64918 |
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- Fits a 4500 series and King Demon carburetors
- Made from sturdy 12-gauge steel and finished in (electrostatic paint) E-coat satin black
- Kit includes heavy and light sets of stainless steel return springs, all mounting hardware and complete installation instructions
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| No. | Description/Application |
| 64918 | Throttle Return Spring Kit, 4500 Dominator and King Demon Carb Mounts. |
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 No. 64919 |
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- Made to clear low-profile racing air cleaners, Moroso Nos. 65860, 65870, 65900, 65901, 65902, 65903, 65908 & 65910
- Manufactured from sturdy 12-gauge steel and finished in (electrostatic paint) E-coat satin black
- Kit includes heavy and light sets of stainless steel return springs, all mounting hardware and complete installation instructions
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| No. | Description/Application |
| 64919 | Throttle Return Spring Kit, 4150 Holley® Series Carb including new HP Series |
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