mercury 175 power loss

[chevyballer]

i bought a boat with a 1979 mercury 175 at idle it runs a little rough but when i wot it revs up like it should then it starts bogging 2 seconds later? it will take a while to get ok speed but not full speed?ENGINE SOUNDS LIKE ITS STRAYNING. MAYBE PROP?COMPRESSION OK.CARBS REBULIT.SPARK ALL OK I ALSO PUT A NEW TANK WITH NEW GAS BEFORE I INSTALLED REBUILT CARBS.OLD ONE NO GOOD

[Packers4ever]

Welcome to I Boats !!Im sure one of the MODS will move this...but you need to post this in the proper forum to get a reply...this is not a salt water fishing topic