Holley

Las Vegas, Nevada – As we strolled about the 2024 SEMA Show, it’s clear that the GM Gen. 5 LT-based engine family is quietly usurping the Gen. 3/4 LS as […]

Ford’s pushrod 7.3L V8 is becoming really, really popular these days, and if the amount of Godzilla swaps we saw at the 2024 SEMA Show is any indication, it’s only […]

Well, our (really) big block Chevy is done and had its maiden voyage on the dyno. We already gave away the ending by telling you how much horsepower the 540 […]

When the Sniper 2 EFI system broke cover last summer, it was an evolution of Holley’s popular throttle body electronic fuel injection conversion kits—offering plenty of refinement and enhancements over […]

Holley upped the ante on fuel injection swap kits with its newly redesigned Sniper 2 Self-Tuning Throttle Body EFI system. And while we recently wrote an entire in-depth article on […]

When Holley introduced its Sniper Throttle Body EFI system back in 2015, it was a game-changing moment in the history of fuel injection conversion kits. The Sniper offered a straightforward […]

I’m having a real problem keeping my Holley carburetor needle and seat O-ring from leaking. My old Holleys worked fine up until about a year ago. Now it seems both […]

Who could resist the classic Holley 4150 double pumper carburetor with mechanical secondaries and a throaty voice—an American classic for generations of street performance weekend drag racing enthusiasts? Not many […]

We all know that making big power with an LS is as easy as adding boost, right? In fact, the recipe for huge power is to add cam, springs, and […]

My 670 cfm Holley Street Avenger carburetor on my 427ci Cobra engine (small block Stroker) has never worked properly since I have owned it. Just as your articles on tuning […]