Coil Over vs Torsion Bar

Signetroar said
Who makes a good set for pre-67 A bodies?I've got a 66 Valiant with a '70 340 & stick.I had to remove ps to install 340 stock headers.Don't want to hack body for headers,not much room on this old narrow chassis!Was considering coil-overs for clearance and serious autocross action. Have done some mods to suspension I won't get into here. What do you think?

Here's an option.

TTI Headers p/n 636 A

Requires some mods to transmission crossmember I think but fit great!