EFI

We’ve taken a good look at many of the Holley (and MSD) fuel-injection systems available. They range from the basic, to over-the-top, in terms of function and capability. … You May Want to Read: MSD Makes Switching to Fuel Injection Easy with Atomic EFI Master Kit Holley’s Uber-Cool Terminator Stealth EFI Another Easy Path to

In part one of this two-part segment, we dug into Holley Performance Product’s top-of-the-heap Dominator EFI system. If you recall, we noted how sophisticated this system is and how user friendly Holley has made it. With that initial look, we looked at everything from self-learning to the base maps Holley provides. This time around, we’ll investigate

I’m building an LS engine to put into an early Chevy pickup and I’ve got a fuel delivery system question. I’m running one of those new Holley Sniper aluminum fabricated manifolds and we’re not sure how to use the fuel pressure regulator. The regulator has a small nipple on the top that’s for a vacuum

It’s no secret that aftermarket electronic fuel injection (EFI) systems are becoming more and more commonplace. It should come as no surprise however, that some of the early systems were a bit complex—you had to know your way around a laptop computer to make the thing function, and even then many of the systems weren’t

If you’re researching electronic fuel injection (EFI) systems, you’ve probably come across the terms speed density and mass air flow (MAF). These are the two most prevalent types of fuel injection metering methods that an EFI system uses to calculate air/fuel ratio. (Some vehicles even use a combination of the two.) Though there is other

I’m building an in-tank fuel pump for a fuel injection conversion in a ’69 Nova with a small-block. I have no experience running lines for relatively high pressure injection stuff. What’s the most painless and economical fuel supply line to build? Is the braided line (PTFE?) with -6 AN fittings the way to go? I

Converting from a carburetor to electronic fuel injection can be both easier and less expensive than some believe, and the Holley EFI unit we’re exploring today is a shining example of that. First, we got up close and personal with MSD’s entry-level Atomic EFI—which simplified installation, eliminated the need for a laptop computer, and offered

I am building a 355 cubic inch small-block Chevy with AFR 1065 220cc Race Ready AFR heads, an Erson roller cam, and FiTech fuel injection. Can I use a wet nitrous system injected under the fuel injection and then into a Weiand 6-71 blower? D.W. Jeff Smith: From your photo, it looks like a great project.

Installing an Edelbrock E-Street EFI system is a smart choice if you daily drive a classic car. It delivers excellent all-weather, day-in and day-out reliability—something you might not get easily with a carburetor. Sale Alert: While supplies last, Edelbrock E-Street 2 EFI Systems are on sale for up to 50%-off from our pals at Summit Racing—not a

Electronic Fuel Injection (EFI) has been around for decades, but plenty of hot-rodders remain spooked by the systems: “There are wires running everywhere.” “You need dozens of sensors.” “There are a bunch of multifarious black boxes looking after top-secret duties.” “They cost a fortune.” “You must be a computer hacker to make the thing run