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New Video! We test the Edelbrock VRS-4150!!
Posted by Steve on 5th Nov 2026
Watch the video here!
VRS 4150 dyno and drag strip testing
In this video, we take a deep dive into Edelbrock's new race carburetor—the VRS-4150. Instead of just doing a typical box-opening, I put this 850 CFM carb through its paces with actual applied testing across three different engines (a 5.3L LC9, a 427 LS Stroker, and a stock bottom end LS3). I compare its features, installation quirks, dyno performance, and drag strip results directly against my tried-and-true Quick Fuel Q850 race carburetor.
Key Topics Covered: • Installation Gotchas & Differences. • Key Features: Idle air bypass screws, annular boosters, TPS mounting capability, and 1/4" bowl hardware. • The "Goldilocks" Engine Tests: Dyno & track results comparing the Edelbrock VRS-4150 vs. Quick Fuel Q850 on 5.3L, 6.2L (LS3), and 427ci LS builds. • Price vs. Value: How it stacks up against higher-priced alternatives like the Holley Ultra XP and Quick Fuel Q-Series.