Here’s a hack that’s been around since the very start of the hot rod movement. Car exhaust flame throwers work by interrupting the spark to the engine. This dumps raw fuel into the exhaust system.

The turn of the new year marks the start of the 2025 racing season, and those who don’t have a race-ready hot rod to dominate ...

Use your car as a flowbench - measure exhaust backpressure to see where improvements can be made. Improve exhaust flow by changing dump pipes ... the gauge won’t get hot and be damaged.