Carb Jet Sizing Explained | Power Valve Setup Made Easy

If you're struggling with carburetor tuning, this video walks you through the basics of jet sizing and power valve selection so you can make the right adjustments with confidence. In this video you'll learn: How main jets affect air/fuel ratio How to choose the correct jet size What a power valve does and when it opens How to select the proper power valve using engine vacuum Common tuning mistakes to avoid Tips for improving throttle response, drivability, and performance Whether you're tuning a Holley carburetor on a street car, hot rod, muscle car, or race car, these principles will help you understand what each change does and how to dial in your combination. If you found this video helpful, be sure to Like, Subscribe, and hit the notification bell so you don't miss future carburetor tuning, engine building, and performance tech videos. Leave your questions in the comments—I'd be happy to help if you're working through a tuning issue. #Carburetor #Holley #Jetting #PowerValve #CarbTuning #EngineTuning #HotRod #MuscleCar #Performance #DragRacing #StreetPerformance #EngineBuild