Hello all, I just purchased a 21' 93 219 persuader yesterday. This is my first post. It has a 300hp 454. Its just a little jump from my 83 Renken 4cyl.... Just wondering if anyone had anything I should watch for with these boats and what kind of speed I can expect with it. I forget what prop its got on it. Also, a winterization question, the dealership hooked the muffs up to it and ran the antifreeze through while fogging it but I didnt pay attention to how warm it was. The antifreeze was coming out the exhaust but is there any kind of by pass until the thermostat opens up? Im just worried it wasnt really warm. Thanks!