I have played around with some fwd drag cars in the past.
Easy way:
-A good alignment, shocks that aren't worn right out, and limit straps up front, so that when it hits the limit strap the camber is a 0 and you have the most contact patch possible.
-Something with about a 1000lbs/inch spring in the back, guys have built solid stops like a sled pull truck that are adjustable and removable for the street, the only thing is that can get a little twitchy on the big end.
Some other notes:
-Wheelie bars work really well, they create an artificially longer / solid wheelbase and allow you to tune in the front, they also allow you to run a softer rear suspension and have better control on the big end.
-Anything under 140mph in the 1/4 really isn't too scary, but above that guys start disconnecting the rear brakes.
-Run a skinny tire with lot's of air pressure in the rear too.
-Learn to preload the suspension at the launch, your axles and diff and general drivetrain and wallet will thank you.
-Make sure there is no defuel when the clutch is in, as it will make a huge difference if you do no lift shifts. So once you launch you keep your right foot planted, and just clutch and shift and let it red line between. It will help keep the charger(s) lit between shifts.