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What's your elevation 5.7 Prostar 2015 or newer?


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@skimtb it’s not the stock high altitude prop. Stock is 712 mine is 712-MF. It has more cup I guess. At sea level they use a 4 blade 709 I think and run lower rpm. 34mph 3600 36mph 3800.

We also run the 709 on the 6.2 up here and it works great. 5.7 won’t turn the 709 up here.

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