71 and 72 hood question

Thanks to all whom can help. I have a 72 Demon in need of a hood. I bought one at carlisle. It says it came off a 72 Demon on it. How can I verify? I have read that 70-71 Dart/ Demon hoods are different in the hinge area. Is this true? I thought they were the same. Tod
Following your post. I changed the hood on my 72 Demon as it had the two single scoops that came on the 71 Demon. I now have a hood with the twin snorkel but when I close the hood, it won’t go all the way down near the hinged area….both sides. Anyone know why this is happening??