I am installing a Rifle Basix SAV-2 trigger in my Stevens 200 action. I can't get the sear pin hole in the action to line up with the sear pin hole in the trigger housing. I know the instructions say some fitment may be required. How should I make this fit? The trigger housing hole needs to go up and to the rear. Should I enlarge the trigger housing hole, the action hole, or take a bit off the tip if the action housing? I am quite stuck and don't want to mess this up.

Thanks
Bill