Stupid question? Can I replace my torsionbars and leafsprings for coilovers?

LOL had to chuckle at that. Most of us are calling ESPO to order +1" over leaf springs because our *** is draggin'. :rofl::poke:
The year was 1971, and I was in grade 11. I had earned the nickname of "Ditcher", on account of my car was often seen in them, sometimes with a load of teenagers pushing.
The car was a 1970 Swinger340/4-gear/3.55s..
I had to do something about that.
I had the rear springs de-arched for reduced side-sway, and better drift control, in the era when I was broke as broke could be. I had spent all my life's savings on half the purchase price, and the rest was on payments. But I also added a second main leaf;eye to eye.
Coupled with a lowered front, I found the 70 Swinger 340 seemed to handle better with those stinking Polyglass GTs.It didn't look very intimidating, but it did allright. When radials came in a year or two later, I was only too glad to get rid of those now bald factory E70-14s . That car also got custom-made slapper bars and 3-way adjustable shocks. It was no Corvette/MG/Sprite/TR6, or Miata; but the changes kept me outta the ditches....... for the most part. And I could at least keep up to those little sardine cans in the twisties. 'Course you know how 17 year-olds drive,eh; yeah, no, it wasn't always pretty.