Your shocks will have no effect on your ride height.
I'm sure you did your homework on leaf springs and that you will find on the market basically standard mount, Mid eye, and reverse eye springs. All of which can change your ride height. The terms above are referring to the location of the mounting eye at each end of the spring relative to the leaf end.
'66 Ragtop, vibrant red, 289-4V, 4-speed toploader
'68 Fastback, space blue metalic, 351C-4-V, 4-speed toploader
'69 Mach I, (Pending Resto Project)