Post Tagged with: "vacuum secondaries"

Tech Articles

Ask Away! with Jeff Smith: No Power, No Secondaries

I have a Chevy 350 Indmar boat engine with a 600 cfm Holley four-barrel carb. It has a marine electronic choke and vacuum secondaries. When opening the throttle, it will […]

383 stroker chevy
Q&A / Tech Articles

Mailbag: Solving Sluggish Engine Performance After Carb Secondaries Open

You’ve got questions. We’ve got answers — when we work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we help a reader troubleshoot sluggish […]

Holley 4-barrel carb - Car Tech Books
Tech Articles

Carburetor Basics 101: A Quick Overview of Primary and Secondary Barrels for Street or Race Applications

There is much to consider when choosing a carburetor for your vehicle. Airflow, choke style, and even the physical height of your carburetor will come into play. But what about […]

Tech / Tech Articles

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 […]