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

OK, here is my $0.02 (although pretty much already covered). You obviously want the car to handle and corner better, right? I put a Hotchkiss sway bar on my 69 340 4 spd Barracuda and it made an amazing difference. The way I see it, you have a few options. If you do not already have a sway bar, I highly recommend the Hotchkiss sway bar. It does require welding. Then you could go with re-arched or new springs, complete new front end rebuild kit with poly urethane bushings and new shocks. Those upgrades would make the already pretty darn good Mopar setup a little better. If, however you want a quantum leap in cornering and handling, you are looking at about $7,000 or so if you went with the Reilly Motor Sports (RMS) front and rear suspension kits, but the change would be AMAZING. There are a lot of other things you can do like tubular control arms, but I don't think these will not yield a huge change in handling. Personally, I would just go with re-arched or new springs, complete new front end rebuild kit with poly urethane bushings and new shocks.