I have a 60hp Chyrsler Model# 609HA Serial# 8540. I have had power issues with it under load for over a year. It worked fine so far this year until last weekend. I was out on the lake full throttle and it slowly died down and i could only get maybe 5-10mph out of it. I tried pumping the primer and it made it almost die out! I checked all my wiring and it appeared to be alright. Just to let you know it has 2 new coils, plugs, USED Prestolite ign system (had the Magnapower II), carbs rebuilt last year, fuel pump rebuilt last year. I am at a loss. I readjusted the floats per the manual and it made no difference. The primer bulb seems to be holding pressure. Can anyone give me an idea? Oh yes, the compression was checked out and i am running middle 140's in both cylinders. LOOKING FOR ADVICE. 