Ask Away! with Jeff Smith: A Brief History of the Airflow-Restricting Chevy 305
How did Chevrolet build the 305 cubic inch small-block? Is it a mash-up of 283 and 350 parts? Or is it just slightly larger than a 302 Chevy engine? — […]
Clash of the Turbo Titans: Summit vs. eBay Turbos
Turbos rule. If you’re a turbo guy (or gal), there has never been a better time to be an enthusiast. Just look around, turbos are everywhere and on everything. Not […]
Truck Cam Swap Testing to Add Low-End Torque
The LS engine remains the darling of the performance world, but does that mean all LS owners are looking for the same thing when it comes time for upgrades? Obviously […]
Ask Away! with Jeff Smith: Matching Fuel Pumps, Lines & Injectors for Max Power
I need help understanding EFI high pressure fuel systems. I have researched all over but the answer eludes me. What determines line size? I’m trying to build a Whipple Supercharged […]
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 […]
Old vs. New: Comparing Vintage and Modern Intake Manifold Design
Intake manifold technology has progressed by leaps and bounds over the years. (Or, has it?) Additionally, there are many more players in the intake manifold business than we saw years […]
Mailbag: Explaining Valve Overlap for Camshafts
Q: What is valve overlap? … A: Overlap is when the intake and exhaust valves are open at the same time. It is expressed in degrees of crankshaft rotation. Not […]
Ask Away! with Jeff Smith: Tuning an Edelbrock 1406 Carb to Cure Fat-Running ’72 Jeep CJ-5
I have a 1972 Jeep CJ-5 with a 3.73:1 gear and 33-inch M/T tires. The engine is an AMC 360 rebuilt with 8.75:1 compression, stock heads, and a COMP Thumper […]
AN Fittings Torque Chart for Automotive Plumbing
AN stands for Army-Navy. The size specifications were established by the U.S. military during World War II and were originally used in the aerospace industry. AN fittings use a 37-degree […]
Improving Hook with Sway Bars on Drag Cars
In the past, we’ve taken a look at the forces at work when a vehicle is accelerating. To recap: “…as each cylinder in the engine fires, the pistons (and consequently […]