71 and 72 hood question

I have a '72 Demon hood that will not fit on my '71 Demon. Does the hood you have, have eliptical holes and the plate that the hood bolts thread into... slide loosely for adjustment? That is what my '71 hood is like. The '72 hood has round holes, and the plate that the hood bolts thread into is fixed. Little to no adjustment for the '71 hinge.