Learn how to choose the right valve springs for your camshaft, the differences between single and dual valve springs and when to replace them.

How to Match Valve Springs to Cam | Single Valve Spring vs Dual

Explore dirt stock car racing’s key terms, classes, rules, parts, and tips for success in this ultimate guide for new competitors.

How to Get into Stock Car Racing Dirt Track Style | Rules & Tips

Learn the importance of proper electrical grounding and how it affects not only starting, but accessories and lighting as well.

Car Grounding | Bad Ground Wire Symptoms & Troubleshooting 101

Leaking engine cylinders is an important preventative maintenance test to do while racing. Learn the steps to perform this test and how to indicate proper engine tuning.

Engine Cylinder Leak Down Test

Cleaning fuel injector nozzels is a must in your car maintenance regimen. Learn the steps on how to properly disconnect fuel lines and check the barrel valve.

Cleaning Fuel Injector Nozzels

Speedway Motors employee Pat O. takes some time to discuss the Fuel Gauge Interface Module that allows you to use any gauge set with almost any fuel level sending unit.

Speedway Tech Talk - Attach Stock Fuel Sender to any Gauge

Are LS injectors confusing you? Comparing stock vs aftermarket vs decapped, we help you choose the right LS Fuel Injector Size & Connector!

What is The Best Fuel Injector For LS? Stock, Aftermarket, Decapped LS Injectors Explained

Fuel injection is here to stay and we delve into the benefits of such retrofit systems for your classic muscle car or street rod in our EFI retrofit buyer's guide!

Choosing an Electronic Fuel Injection Retrofit for Your Street Rod or Muscle Car

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend.

6.0 LS Build Combinations: Recipes for 500-1,000 HP

Power brake boosters offer lower pedal effort and better braking characteristics, but which one is right for your hot rod, muscle car, or truck? We take the guesswork out of that question with our latest buyer's guide.

Best Brake Boosters for Better Braking

Engine Family Facets

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Stock Car Fuel Testers

Stock Car Fuel Testers | Speedway Motors

Shop Stock Car Fuel Testers and get Free Shipping on orders over $175 at Speedway Motors, the Racing and Rodding Specialists. Stock Car Fuel Testers in-stock with same-day shipping.

Stock Car Fuel Testers

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Holley 26-147 E85 Fuel Tester

Fuel Safe Fuel Level Indicator Stick

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