Mailbag: The Math Formula for Determining Carburetor Size
Q: I am in the process of rebuilding my small block Chevy and am looking for the formula to figure out the proper size carburetor. Do you know it? If […]
Mailbag: Solving Cold-Starting Problems and a Rich-Running Carb on a Chevy 305 in a Full Size Van
You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re troubleshooting carb issues in a 305-powered Chevy […]
Mailbag: Recommending a Carburetor and Gearing Combo to Fix 700R-4 Shifting Problem
You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re recommending a carburetor and gearing combo to […]
Mailbag: How to Fix Gas Fouling and Oil Misting in a Chevy 383 Small Block Stroker Engine
You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re troubleshooting problems with gas fouling and oil […]
Mailbag: Cleaning the Carb on a Big Block Chevy 454 to Fix Engine Stall
Q: I have a Holley 800 cfm double pumper carburetor on the 454 in my 1970 Impala. The carburetor worked fine when I first installed it. But after the car […]
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 […]
Holley Redesigned its Legendary 4150 Carburetor for Racers, New Ultra XP Carb is PERFECT for Tunnel Ram Setup
Spin back the clock about 45 years or so. If you had an engine combination that could handle it, what you really needed was a tunnel ram with a couple […]
A Quick Guide to Carburetor Heights (and Why They’re Important)
When it comes to choosing a carburetor, there are lots of things to consider: airflow, choke style, and secondary type, to name a few. But what about the physical height of the […]
Mailbag: How to Cure Spark Plug Fouling During Idle
Q: I own a 1971 Dodge Demon with a 400. The 10.5:1 compression engine has a forged crank and “LY” rods, and has a balanced bottom end. The heads are 906 castings […]
Ask Away! with Jeff Smith: Converting a Draw-Through Carburetor to Blow-Through
I have a 850 Mighty Demon carb marked BC 56. The carb is designed for use with a Roots or draw-thru supercharger. I want to use it for blow-through using a […]