got an 77 inline six 1150hp and ive tried everything i know to get this motor to idle. things ive done checked comp all seem to be around 120,cleaned carbs once then twice off the motor..,checked ign timing,did the linc and sinc,replaced all corroded wires,changed all the gaskets,exhaust was leaking water into cyl 3 and 4 checked spark plug wires,cleaned dist cap and rotor,replaced fuel pump diaphram and fuel lines,and probly more than that but cant remember. now to what its doing, motr starts,runs and shifts good while on the muffs,but as soon as i put it in a pail of water thats whern the problem starts. it will start and idle good in neatral about 800rpm but then when i shift into gear she wants to die,and the only way to keep it running is to give it gas. now like i said before ive done the linc/sinc and i am still have a hard time with this motor. as far as i can tell the carbs are working as they should because itl stumble when mixture screw turned in and then smooth out when turned out. now i keep reading all these post people say merc sydrom/bad reads and what not but i dont realy want to give up on this motor as she runs good at high speed and at low speed but seems to be a little fast while in gear idleing.