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David Freiburger genuinely forgot he owned this 1970 Plymouth Duster until it turned up buried in dirt on a California grape farm belonging to Engine Masters editor Steve Dulcich. What followed was a five-day sprint to stuff a salvaged 440 big-block into the car, complete with hammered-on headers and a trunk painted before the engine even ran. Longtime fans still call it the best episode Roadkill ever made. Watch the full build and burnout below.
David Freiburger’s on-camera shout of “Thermoquad!” during Roadkill’s General Mayhem build turned an obscure Carter carburetor into a legend — but few people actually know what makes one different. This Roadkill Extra breaks down the spread-bore design, the unusual plastic float bowl built to fight heat, and exactly why Freiburger called it the carburetor that “punishes” careless drivers. It’s a deep dive into a piece of Mopar hardware most fans only know as a punchline. Watch to finally learn the mechanics behind the meme.