Greetings from the newbee. Motor runs fine but boat is very slow.....The specifics are as follows: 21', 3100lbs, 4 Winns candia 200 serial#(4WNMX558C7 87) deck boat with mcm 200, 305 cid v8, max rpm 4200 to 4600. If it helps the transom serial# is 0b693315 but havent found any specs on it. The...