Hi guys.Really need some help.My johnson 150 oceanpro 1999 will start and idle fine however when you hit it to take off it stalls and dies.Does not happen all the time but alot.Powerhead was rebuilt 30 hours ago compression is good and even across all 6.A fellow said (big mistake)he could fix.Worst now.He claims on the intake behind the carbs. are allenhead adjustments screws for trainsition from idle mid to wot operation.He adj. them to 6 turns out.Ihave seen these screws on the intake but never found any reason to touch them.always just rebuilt carbs set lynk synk and go.Any suggestions on what to try.Thank you in advance,Lou.