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IO-390 STC for Arrows

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Skigolfmike

Skigolfmike

Supporting Member
Joined
Nov 15, 2019
Messages
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Location
Dayton, OH
Crazy idea from watching Mike Patey's Scrappy videos. Apparently, the 390 is the same case as the 360 with different cylinders and pistons. I mean whose Arrow couldn't use another 15hp. Yes, it's a crazy idea. Kind of like the Bold Warrior STC putting 180hp in a Warrior.
 

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