Water / meth injection with rootes blower

Did the car have to use a lift off hood to clear the air cleaner? I'm asking because mine sit pretty high an I've been putting off trying to make the hood fit. Mines a 68 dart. I had a guy tell me there wouldn't be much hood left after the larger hole is cut an the hood may bend in the middle unless it's supported better? I don't know I haven't come across many darts with blowers for me to look.