i have a 200 gt 1990 it runs ok it has a little miss on takeoff but runs 20 ft heavy boat 64mph turns 6100 rpms ive done a compression check it 70 on all 6 cyl's ive had some tell me its done needs rebuilt then have some tell me its fine becase they all are the same i looked up this and there is a lot of these 200gt with low compression does anyone know what the deal is with these having low compression should i run it till it wont run any more any help will go long way thanks hope to here something bout the compression