Mailbag: Leaning-Out a Holley 650 Double Pumper’s Rich Idle Fuel Mix
Q. I have a Chevy 350 engine with a Holley 650 double pumper and a COMP Cams Xtreme Energy camshaft in my street rod. I’m unable to get the idle […]
Ask Away! with Jeff Smith: Tuning Out a Rich Mixture on a 455 Oldsmobile with a Quick Fuel Carburetor
I’m having a hard time with the 750 vacuum secondary Quick Fuel Slayer carburetor on my low compression 455 Olds. The engine has a mild 218/218 cam and good manifold vacuum at […]
Mailbag: Finding Low-End Power in a Sluggish 350-Powered 1981 Firebird
Q: I have a 1981 Pontiac Firebird with a Chevy 350 in serious need of some more low-end power! It has a Holley Dominator manifold and a 750 cfm car, […]
Carb Loading: Load up on Holley Carburetor Tuning Tips and Tricks
Carb tuning has been a popular topic for us and our readers. Over the past few years, we’ve done several posts on the topic. The process itself can be a little […]
How To Adjust The Electric Choke On A Holley 4-Barrel Carburetor
An improperly adjusted electric choke on a Holley four-barrel carburetor can keep your engine from idling properly during cold starts. Starting a cold engine requires a richer air/fuel mixture as […]
Video: How to Adjust the Idle on Your Holley-Style Carburetor
This is the second in a video series that will teach you how to effectively tune your carburetor. In this 12-minute video, the tech experts at Summit Racing will provide […]
Video: How to Tune Your Holley-Style Carburetor Inlet Circuit
This is the first in a series of videos that will teach you how to effectively tune your carburetor. In this 15-minute video, the tech experts at Summit Racing will […]
How to Tune Power Valves on Holley Carburetors
Holley carburetors have a power enrichment system that provides fuel to the main power circuit during heavy loads or under full throttle situations. The vacuum-operated power enrichment system is controlled […]
Carb Tuning Tips, Part 1: Understanding Basic Carburetor Anatomy
If you ever have the chance to discuss engine tuning troubles with the legendary Jon Kaase, you’ll rejoice in his simple logic: “Most engine troubles are centered on spark or […]