This past weekend was the 2nd time I have had my 92 23' Century arrow out and the first time I have had more than two people on it. It has two seats upfront and a bench in the back. I had 4 people sitting on the back and me and my wife in the front. It is a closed bow. I could not get it to plane out for anything. It would sit at 3000rpm and point straight at the sky. It has a 21p. SS prop with a 350mag. At WOT it runs 5000rpm (when it planes out).
Do I need to switch to a 4blade? a different pitch? am I underpowered? I know all the weight is in the back but I thought the 350 had enough umph. Please help before season is over!