Hello everyone! im new here.. hope you fellas can help me out. I recently bought an 01 sundancer 270 with a 383 mag w/208 hrs on motor. did all the normal maintenance before running it. took it out several times, put about 40 hrs on it with no issue, boat ran awesome! couple weekends ago i took it out and everything was good. came into a wake zone while at about 3400 rpm. went thru the wake zone which took about 15 minutes. went to take off and i got an alarm. temp was good, oil pressure was good, drive oil good. turned key off started up with no alarm. went to take off again and got the alarm again. i pulled the dipstick and i was low on oil. had a quart onboard, put it in and took off with no alarm, but it took me forever to get out the hole, which wasnt normal. so for the next couple hours same thing, took forever to get on top and when i did WOT would only get to 4200 when normally it would top out at 48-4900. soooo, changed sparked plugs, pulled injectors and cleaned them, which they really needed. changed the oil, 40lbs of fuel pressure. took it out same thing... so then i do a compression check. in random order 140, 175, 175, 170, 135, 165, 170, 160... anyone have a clue of what happened? if the cylinder numbers are important i can provide that. any help would be greatly appreciated!!!