Heading into a rough chop

My 89 c/c on day's like that like yesterday i went about 3 miles offshore and i have to do about 10 to 12 mph and right about where the flair ends it will send a colum of water up and right down to where i am standing is this normal or is my motor not trimed right or do i need to get the bow up or down to keep this from happening? I know this might be a bumb question but can someone give me some advise on this.