Mailbag: When and How to Change a Carburetor Accelerator Pump
Q: My Holley-equipped vehicle has a stumble from a dead stop. Someone told me the accelerator pump nozzle may need resized. How do I know if I need to change […]
Video: Installing a Banks Power Big Hoss Bundle on a Diesel Truck
Banks Power is synonymous with diesel performance. As further proof, Sam and Dave from Two Guys Garage walk you through the installation of a Banks Power Big Hoss bundle. This Banks technology […]
Block Talk (Part 1): What to Look For When Buying a Used Engine Block
Anyone who has ever spun a 9/16-inch wrench on a hot rod knows the engine block is where it all begins. There are lots of options available—new and used, iron […]
Ask Away! with Jeff Smith: What’s the Best Rotor Tip and Terminal Spacing for my Ignition System?
I have a question about the optimum distributor rotor tip and terminal gap. Modern replacement parts for our classics are all over the place, either in terms of length, cap […]
What is a Leakdown Tester? And How Do You Use It?
If you build engines or if you campaign a race car (or any street-strip car for that matter), a leakdown tester is pretty much a go-to tool. Why Do a […]
A Closer Look at Melling’s New Shark Tooth Oil Pumps
The spur gear wet sump oil pump has been around for a long time. A very long time. It works pretty well, and there have been improvements over the years. […]
Ask Away! with Jeff Smith: Before Buying a New Carb to Fix Engine Stumble, Try This
I just bought a nice ’69 Dodge Charger with a 440 that I got on a really good deal because the previous owner had given up trying to make the […]
Installing a Hotchkis Sport Suspension Kit on a 1981 Chevy Camaro
In the high-performance world, nothing ever remains stock. That makes it difficult for aftermarket companies to design parts and kits that are true, easy bolt-ons for every car—where literally nothing […]
Mailbag: Cam Duration and Piston-to-Valve Clearance–and How they Relate
You’ve got questions. We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re examining camshaft duration and piston-to-valve clearance. D.W. Nova Scotia, Canada Q: I have a […]
Valvetrain Vigilantes? Camshaft vs. Roller Rockers Test
How much power are roller rockers worth? How do rockers compare to a cam swap? Can I get the same power gains with rockers and not have to tear apart […]