I have the opportunity to buy a 1987 Four Winns 215 Sundowner with a Mercruiser 5.0L and Alpha One. It's a 21' Cuddy with the 200Hp 5.0L engine, and it has a stainless 18p prop. Anyone with knowledge of these boats care to tell me if this is a good setup? The owner said it's a 45 mph boat, but i'm not sure if i believe him. The boat is in great shape, but i'm still skeptical about performance. Anyone know how these boats perform? Thanks