Light weight hood springs, how tight to wind ?

i like the wheels, i want to put those on my 73 cuda once its done... whats the sizing on those


15X4.5 fronts and 15X10 in back, American Racing Torque Trusts D's
I almost went with Billet Specialties rims , But I like this old school look on the car


anybody with help on the hood springs ??????????

Thanks
Donnie