In this episode, we meet up with the Kuntz Bros from Georgia to dyno test their 4bt Cummins repowered Ford Excursion. Things get carried away and a their home-ported 4bt cylinder head ends up on the flow bench. Finally a PDD CNC stage 1 ported head ends up in the Excursion and back on the dyno. Guess the power gains and post your guesses down below in the comments!

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