Predator 420cc Stage 2 Build Pt. 2 | It's a THUMPER!

We finish installing a Predator 420cc stage 2 performance kit from Go Power Sports, which includes a high performance cam, billet flywheel, dual valve springs, and a billet rod. We also install a carb jet, air filter, and header on this gx390 clone. This built 420cc engine is LOUD! It's probably the loudest small engine we've ever run to date.
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-----------------GO POWER SPORTS PARTS IN TODAY'S VIDEO----------------
Predator 420cc stage 2 performance kit:
Predator 420cc stage 1 performance kit:
Go Power Sports:
NEW MERCH:
Equipment we use:
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Cars and Cameras makes no representation about the sufficiency of any safety precautions and equipment used in this video.

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