Yes, you need the leverage. There is a member called Atomic Dog who made them for glass hoods. The hood springs from FWD Daytonas, Shadows, etc. are a little lighter than Dart Lite/Feather Duster hood springs which go with the aluminum braced hoods on those cars. But they are stronger than the custom glass hood springs. Those hoods are 12-15 lbs lighter than the regular all-steel hoods. Not sure if they would be too stiff for glass hoods, but they don't keep the Lite/Feather hoods up reliably. I used a prop stick.
