i have a 2052 86 renken. The out drive is 85 3.0 omc stringer 400. It has a hard timegetting up when hot. Had a head gasket put in it last year. Did a compression test and found all cylinders at 130. Cange fuel pump with filter. Converted ingnition from points to Hall system. Had carb rebuilt last season. When its cold will zip along at 4200rpm. You stop and swim or get ready to tube and it will go at first, but drops the rpm to no higher then 3200. Any help would be great. Thanks Dave
