after tune-up and many testing, bot runs for few minutes and dies.

[monterey98]

my engine serial number is 0L025412, mercruiser 5.7 efi, basically whats doing now is, i have to pull the filter out and fill it up so i can get going, and the engine will run for 2 minutes and dies, when i take the filter out it's half full, i heard it's supposed to be full all the time.

i already bypassed the tank, the filter and all even took the gas hose out of the throttle body and there is no gas there.

i already used an extra/external tank and nothing. use a ball primer pump and gas come freely from the factory tank.

there is spark when it dies.

it runs sometime, like a month ago i took the a water test and ran for 30 minutes, when i got back in the house for flush died.

fuel pressure read 35 psi when ran fine.

is it the pump bad? fuel pressure regulator? i dont see any other solution.
some people say the coil or the distributor module.

some help please.

thanks