We are the new owners of 'Last Waltz', a Seafarer 30 Swiftsure 1982 which we spent the month of July sailing from Duluth, MI to Midland, Ontario, Canada, a sailing distance of about 860 miles! Enjoyed the boat and enjoyed the sail.
We would like to raise the boom on the mast about a foot, giving us more clearance for a dodger. The dodger that is on there now seems too low and there appears to be room for the main to be raised about a foot. Has anyone done this before?

Would anyone know the PRFH for the Seafarer 30 with a furling 150 headsail, standard rig?

Thanks for your help in advance.