Where is it causing interference? Example: it’s hitting motor on right near front right or it’s too tall and crunching my armpit. Nah, forget that… call Ribtect, explain the situation and get the right answer. 877-RIBTECT
All you do is cut 3/4″ off the top and round it off in the front to blend it into the wings. If it’s not enough trim a little more. I use a saber saw and dust mask. If it has any edging glued on you’ll have to take that off and re-glue it.