Ive got this 13' 4'' St Martin I put 85hp Yamaha and jack plate on it couple of days ago. It had a ss 17p prop and the battery and gas tank behind the seat. I moved the battery and gas tank to the front after I ran it once and then got a 24p laser 2 prop. Its running great up to 52 mph but after that it starts chine walking. What can I do to keep it strate. Trim tabs?
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