Video: Holley Introduces In-Tank Retrofit Fuel Modules


Never before has retrofitting modern technology into your classic Mopar muscle car been so incredibly self-contained and pain-free. Today’s manufacturers are making incredible (and rapid) strides to improve your classic’s driveability, responsiveness and of course, performance, and at the forefront of this effort is Holley Performance Products who have worked to culminate all of their knowledge accrued over the recent years to provide all of the benefits of modern EFI without losing the soul of your Mopar.

Holley’s new In-Tank Retrofit Fuel Modules allow for you to maintain your classic fuel tank (rather than taking up valuable space in your trunk with a fuel cell (or cutting up your trunk pan, for that matter), and simply install their in-tank fuel pickup and pump – as well as one of their awesome HydraMat pads to ensure that you’ll never starve your motor for fuel! The kit works independently from your EFI, so you can choose the system that best fits your needs and budget – be it Holley’s Terminator EFI, Sniper EFI or Atomic MSD EFI – or any other EFI system in the market today.

Here’s the original press release:
Holley is pleased to announce the release of their all-new Universal In-Tank Retrofit Fuel Modules.

Available in both return-style and returnless configurations, these hassle-free fuel modules relieve the burden of converting a factory tank or fuel cell for an in-tank EFI fuel system. They are an ideal fuel system solution for any Holley/MSD EFI multi-point or TBI conversion.

Each version of our drop-in module is available with two fuel-pump options – 255 lph or 450 lph – to match a wide variety of applications. Each module comes with an innovative Holley HydraMat installed to handle fuel-pickup responsibilities, which makes for a powerful combination of engineering and performance.

Returnless Modules include all the features of a standard return module and eliminate the need for a return line and a conventional pressure regulator, which simplifies the job even further. Included is an internal fuel-pressure regulator preset to precisely 60 PSI. Once installation is complete, all that remains is fuel-line routing and connecting the power source and ground.

This billet-aluminum module includes a billet pump-hanger bracket to control pump vibration. The entire assembly installs securely into any tank from 5.5 to 12 inches deep and features a low-profile design that’s only 1.275-inch above the tank-mounting surface for added clearance.

A vibration-resistant clamping system and integrated fuel pump make it easy to locate the module anywhere in the tank and rotate the unit a full 360 degrees for unlimited plumbing and wiring clocking. All-aluminum construction and black anodizing make for great looks and maximum corrosion-resistance. Both pumps utilize ¼-inch NPT ports which create an endless array of plumbing options.

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Kevin Shaw

Editor-in-Chief – kevin.shaw@shawgroupmedia.com Kevin Shaw is a decade-long powersports and automotive journalist whose love for things that go too fast has led him to launching Mopar Connection Magazine. Almost always found with stained hands and dirt under his fingernails, Kevin has an eye for the technical while keeping a eye out for beautiful photography and a great story. He's also the co-author of "The Chrysler B-Body Restoration Guide."

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