Exterior Components Body Panels and Components

FAST

FAST Throttle Linkage Kit EZ EFI

$49.95

SKU: F003 304110

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item

Overview

The FAST 304110 is a dual quad throttle linkage kit designed for EZ Fuel throttle bodies.

This kit allows for the connection of two EZ Fuel throttle bodies, enabling smooth transitions from idle to wide-open throttle. The throttle bodies feature tapered and radiused bores, with precisely machined progressive linkage for optimal operation.
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Part #: 304110

FAST 4 Barrel Throttle Bodies incorporate tapered and radiused throttle bores and precisely machined progressive linkage for smooth throttle operation and unparalleled airflow. More airflow equals more horsepower.

Connect two EZ fuel throttle bodies with this linkage kit for dual quad manifolds.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Vehicle Symptoms
  • Staggered throttle opening between carbs
  • Sticky or uneven throttle pedal feel
  • Poor idle quality on dual carb setup
  • Hesitation on acceleration from stop
  • Inconsistent WOT performance
Relevant Conversations
  • FAST dual quad throttle linkage for EZ Fuel
  • How to synchronize dual quad throttle bodies
  • Throttle linkage kit for dual carb setup
  • Progressive linkage vs synchronous for street performance
  • FAST 304110 throttle linkage installation
  • Uneven throttle response on dual quad setup
  • Best dual carb linkage for smooth operation
  • Dual quad linkage adjustment tips forum
  • FAST EZ Fuel throttle body progressive linkage
  • Throttle binding after dual quad upgrade

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFAST
Part NumberF003 304110

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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