hello i have a 22 ft chris craft year 1978 currently running a twin 125hp year 85 one of them ideals high and one ideals low. can you please tell me how to change the ideal. and i am also thinking about changing to a single outboard thinking of puting a 200 hp can some one tell me how big of a job is it removing both outobards and putting on a single one. <br /><br />Thank you for your help,<br /><br />Mody