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fuel pressure is @ 42psi with regulator connected and 48 with vaccuum line off. compression range is 155-165 on all 6 the injectors were replaced with new gm injectors, same part # i am going back today to check the fuel pressure with a different gauge to confirm findings, i am also bringing a...

throttle plate is wide open @ fulll throttle, no belt dust, flame arrestor was not in place for testing. yes it revs in neutral

new new to me boat, haven't run a mechanical compression test but did one with the scan tool and all cylinders reacted the same. fuel filter new with module, fuel sample taken and looks clean and is fresh. tryed the trim all the way down on take off and 1/2 way up, both same results. and...

i have this boat that will not get out of its own way. and its kicking my ass, i hope someone else has had a similar issue. it feels llike i have 6 fat guys sitting in the rear of the boat. the engine has 150hrs on it, the fuel pump module was replaced due to low pressure and noise, the screen...