I'd talk with Rancho first and see WHAT is adjustable on them and HOW adjustable are the shocks.
They may not adjust for what you're looking to do.
That said, if you're looking for drag racing setup then about the LAST thing you want in front is a set of stiff shocks! You'd be better off with adjustable (i.e. can be made soft) shocks in front and a "stiff" shock in back (although adjustable is still better in back to let you dial things in).
these shocks have a 5 position ride adjustment knob on the bottom, with a turn of the dial you can go from ultran dampening, to really stiff. Its really cool to mess around with. I agree with Ed, call rancho and see if the application fits your needs, but if you want to go from stiff on the track to nice and plush on the road then these are the shocks for you.
btw they also sell a kit that allows you to change the dampening from inside of the car, and can control all 4 shocks.
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