5.0s in 280 SS
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Join Date: Jul 2010
Location: Centennial, CO
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I have a 1998 with the 260hp 5.0s, it is a high 40's low 50's boat at sea level. I think with the 300hp motors a couple mile faster. There is (or was) a video on you tube of a guy who put big blocks in one and got into the low 60's. They are stable and handle great but not speed demons.