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Old 02-12-2020, 05:52 AM
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SquidBonez SquidBonez is offline
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Thanks again Kartorbust.

Although I'm still wondering if anyone on this forum has any horsepower ratings of their own for a built Predator 420 just for curiosity's sake. If Red Beard's Garage can get 30 out of a Duromax 440 I'm sure you could do the same for a Predator, it's only a 20cc difference. NR Racing sells a kit they claim can take a GX390 to "35+ horsepower", and a 420/440 to "40+ horsepower", but I'm sure how accurate that is. Here's the kit if you want to see for yourself: http://www.nrracing.com/product-p/stage4kit390.htm
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