Ask Away! with Jeff Smith: Are Vacuum or Mechanical Carburetor Secondaries Better for My Street Car?
I’ve got a nice 3310 Holley 750 cfm vacuum four barrel carb for the 350 small block Chevy in my El Camino that I want to use because I think […]
Holley’s Got an Intake Manifold That Makes it Easy to Put a Carburetor on a GM Gen. V LT Engine
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 […]
Doing a Godzilla Swap? Holley Brings Ford 7.3L Engine Parts to SEMA 2024
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 […]
540 Cubes of Fun: Finishing and Dyno Testing a 712 Horsepower Big Block Chevy
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 […]
10 Questions with Colin Kinser from Holley on the Sniper 2 System & EFI Conversion Tech
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 […]
Video: What’s the Difference Between the Holley Sniper 1 & Sniper 2 Throttle Body EFI Systems?
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 […]
Holley’s Sniper 2 Throttle Body EFI System is the Next Generation in Fuel Injection Conversion Kits
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 […]
Ask Away! with Jeff Smith: Finding a Replacement for a Leaky O-Ring on a Holley Carburetor
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 […]
Street HP—Going Your Classic Holley 4150 One Better!
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 […]
The High 5! Building a 500 Horsepower All-Motor 5.3L LS
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 […]