Moderate — 2–4 hours
Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Quick Fuel |
| Part Number | Q009 21-474QFT |
Videos
Better throttle response / less hesitation from Holley style carb for $40? Power Blast Plate Review
Quick Fuel Technology HR Series 450cfm Carburetors
How To Adjust The Accelerator Pump On Holley Carburetors
4150 Carburetor Accelerator Pump Tuning
Holley Carb: Accelerator Pump Set-Up & Tune (CARB BASICS PART: 2)
The Ultimate Holley 4150 Tuning Video! ( As easy as 1 2 3 sort of )
CAR FIX features the POWERBLAST PLATE
You Need to Make Sure That Your Accelerator Pump on Your Holley is Set Correctly #shorts
lean off idle stumble. quick fuel 750 cfm light throttle movements.
I’m Testing DOUBLE PUMPER Vs. VACUUM SECONDARY, 750 vs. 600 CFM Carburetors
Buy with Confidence
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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