hile the thought of upgrading to a carburetor in 2026 might seem a bit contrived, cost and accessibility can be a huge hindrance when it comes to making the leap to a fully electronic fuel-injection setup. Without a laptop or the ability to program an ECU, tuning an EFI system makes one reliant on a dyno shop or third-party tuner. Yet while most modern EFI systems feature self-learning abilities and a very robust initial programming baseline, there can still be subtleties that need to be refined by a professional. That’s what still makes a carburetor a very attractive option for many classic truck enthusiasts and the reason the guys at Edelbrock sat down and designed a clean sheet four-barrel carburetor, the VRS-4150.

Based on the classic 4150-style design found on many Ford vehicles going back as far as the 1950s, Edelbrock’s VRS-4150 took those elements and injected it with a plethora of adjustability, all at a screwdriver’s length. With a simple turn of an adjustment screw or a change in size of a jet or air bleed, the VRS-4150 can be easily dialed in by the end user, much to the chagrin of your local EFI tuner.

Designed with a leaning toward the performance crowd, the adjustability of the VRS-4150 is truly remarkable, with improvements and modifications done to nearly every aspect of the carburetor, from how the fuel enters the float bowl chamber to how it enters the venturi, no stone has been left unturned by the folks at Edelbrock.

So, if that old hauler has been sitting on blocks since the Johnson administration or you’re simply looking at adding a more performance-based carburetor to your existing pickup, check out Edelbrock’s VRS-4150. We think you’ll find a very robust carb in a very user-friendly package with capabilities not found in the carburetor market of the past.

2. The guys over at Edelbrock like to talk shop about all things carburetor and when we mentioned our project, they eagerly recommended using their new 650-cfm VRS-4150 four-barrel carburetor (PN 1306). With many of the same functions and features of their AFB carb line, the VRS-4150 has one foot firmly in the street performance and racing application. Available in cfm ratings in 100-cfm increments, starting at 650, this new carb is extremely versatile and highly capable, with an impressive tuning range.

4. We’ll be reusing a couple items from our original carb setup, including the Lokar kickdown and throttle cables, bracketry, return springs, and hardware, so that needs to be disconnected before the carb can be removed.

7. With that, it’s a simple matter of bolting the VRS-4150 into place.

8-9. As we mentioned earlier, we need to retain the existing Lokar cables. This meant that we need to retain their attachment studs as well, which need to be removed from the original carb …

11. Here, carb and cables have been mated using the existing hardware and bracketry, showcasing the new VRS-4150’s ability to be truly plug-and-play in situations where it’s replacing an existing four-barrel carb.

13. The same single AN-6 line that fed our original carb now feeds the dual fuel log.

15. While the tuning of the new carb is pretty impressive out-of-the-box, initial adjustments can be made via the four-corner mixture, idle, and throttle blade adjustment screws.

17. … and a matching pair of valve covers (PN 4145).