Four-Barrel Carburetor to Eight-Barrel Swap - How It Works

Swapping out that four-barrel for an eight-stack induction can net massive performance. Inglése explains how it’s done.

Stephen Kim Oct 25, 2012 0 Comment(s)
View Full Gallery

The same applies to Weber carbs. In most cases, an IDF Weber system will perform better in milder applications, offering better street mannerisms, while the more highly sought after IDA system will make better horsepower, but often at the expense of low-rpm torque and driveability. Additionally, if there is one other single thing that’s a critically important piece of any multi-carb system’s puzzle, it’s the linkage. If one piece of the throttle linkage gets tweaked and throws the rest out of sync, it can give the whole system a bad attitude. It’s easy to get put off by a simple problem and then determine that the entire carb system is too finicky or complicated. To avoid this, working with us here at Inglése and allowing us to build a complete, ready-to-install system pays dividends. Allowing us to assemble your custom Inglése system on the front end will likely help prevent any potential headaches for the end user on the back end.

1212chp 07 O  Four Barrel Carburetor To Eight Barrel Stacked Intake 2/10

Easy Installation

Individual-runner induction systems certainly have an exotic look, and as such, some people assume that installing one is complicated. In reality, these systems are relatively simple to install. We’ve done just about all the homework for enthusiasts, making installation straightforward. We offer the Inglése systems complete—whether carbureted or fuel injected—with the proper linkage, fuel lines, rails, fittings, application-specific wiring harnesses, and even small-diameter distributors for our EFI systems. When ordering a complete system, customers can literally pull the pre-assembled unit out of the box, bolt it on, drop in the distributor, hook it up to the existing throttle linkage, connect the fuel line, and fire up the engine.

Stack Height

Different applications require different throttle stack heights, and some people prefer longer stacks than others. This raises concerns of how much stack height affects engine performance, but our testing has found that isn’t that important. We typically see very little difference in performance based on stack length, specifically in EFI applications. This is due to the fact that EFI systems are so vastly tunable. Carbureted systems do tend to like a slightly longer stack due to their circuitry. However, we have the ability to customize any system for optimized performance and the desired looks. So if there is any trade-off between the two, it’s minimal at worst.

Available Applications

Inglése offers a variety of individual-runner intake manifold packages for small- and big-block Chevy and LS applications. Each can be had with either EFI or carburetors. Additionally, we have custom-built systems ranging from stock V-6 engines all the way up to highly modified, big-inch, high-performance big-blocks making nearly 1,000 hp. Whether using a cast-aluminum manifold or a one-off custom sheetmetal intake, there’s something in the Inglése line that will work well on just about any Chevrolet application.

1212chp 08 O  Four Barrel Carburetor To Eight Barrel 3/10

Discreet Filters

Eight-stack induction systems look so good that many people don’t want to put air filters on them. We’ve developed a series of “no show” metal screens just for this situation. While being small enough to fit between the throttle body and the mounting flange of the manifold, we’ve designed them with an increased filtering area to help keep all the unwanted elements out of your engine, while maintaining all the visual impact of the system. So now you can protect the motor from contaminants without covering up the good looks of an eight-stack induction system.


Memphis, TN 38118


Connect With Us

Get Latest News and Articles. Newsletter Sign Up

subscribe to the magazine

get digital get print