Getting my 67 valiant to hook.

Hey, I'm looking to set up my 67 valiant 318 for drag racing in hopes of keeping up with a friend in his 383 duster.

Needless to say I need all the help I can get.

I've been looking at Koni SPA1 drag shocks on summit racing, I've heard about 90/10 shocks but these sound like they'd be better, and perhaps more street friendly too.

Car is just on 350hp at the fly, has /6 torsion bars. 3.7 gears and 25 inch street tires.

I'm thinking of getting the rear leaf springs reset to help the car launch.

Any advice appreciated.