Ahhh, the Holley 4150. Released in the late '50s and made available to the aftermarket in the '60s, it has been the gold standard for performance carburetion ever since. It has an enormous range of street and race applications, and its design has been copied countless times. Seemingly everyone has one, but do you really know how to tune one? Join us as our resident carb whisper, Steve Brule, takes us through all the tips and tricks you need to know to get your 4150 running its best on any engine. See it on this episode of Engine Masters, presented by AMSOIL!