You are going to have to be more specific and read what you are typing! "it looks like my oil is in the way" is not going to get you any help. Blasters do not have oil filters. I suggest you download a manual and read it.
If the oil tank is in the way you may have to remove it. You will need to pull the oil pump, install a block off plate. Plug the port on the carb that the oil line goes into. Rejet your carb up one jet size on the main. Start premixing your fuel at 32:1.
Or find a way to make the air box work with the oil tank.
These CFM boxes will not fit with the oil injection tank in place. Block off the pump and throw the tank in the trash and never look back.
both of the CFM boxes I bought didn't fit at all... had to drill new mounting holes to even get it close. idk if the guy making them was drunk, high or what but he did a horrible job....