Hi,
I have a 93 Accord and lowered it 2.25" and had the same problem with the control arm hitting the inner fender well. I also had an SPC ball joint camber kit.
As you may have noticed, the fender well is made of a very strong metal. What you need is a propane torch and a hammer.
You will have to remove the front wheels and jack the car up very high off the ground. (I recommend jack stands also).
You then have to remove the lower section of the ball joint so that you will have room to swing the hammer. Also, remove the control arm by romoving the two bolts that are close to the the shock tower under the hood.
You will have to visually inspect to see where the arm is hitting the fender and heat that area. Be careful because the undercoat may catch on fire but only temporarily. After about 20 seconds or so of heating, hit the area with the hammer.
Several solid hits should pop out that area really nice. Be sure to occasionally check to see if the control arm clears the area you are hitting because you do not want to clear out too much of the fender. And that's it.
Now you dont have to worry about camber issues because you can straighten up the wheels to be more positvely cambered.
I've done this to several of my friends' 90 -93 accord and it is the best solution that will make the control arm clear the fender besides actually cutting that area out.
Tell me what you all think?
Also , the rear fenders can be "rolled" with a wooden bat so that the wheel camber can be fixed in the rear as well without rubbing.