Not sure about yours, but my SunDeck uses a plastic material for the seat bases. It goes by the trade name Star Board.The previous owner apparently had someone heavy jump down onto one of the front seats, and broke it all to pieces.I was able to find...
I have a 99 210 Sundeck with the same engine (5.0, 2bbl, 220 hp), and it normally runs 170. It might go up to 175 during a hard run.Comment on wingless: The fuel cooling is only there on the fuel injected engines.