Realistically a perfectly setup autocross car will be limited in the drags and vice versa. I run toe out front and rear to get the car to turn better which kills me in the drags. For drag racing you want the frpmt tires flat on the ground for better traction whereas you want more camber up front for better cornering.

So you have to choose Autocrossing = courses longer than 40 seconds. Drag racing = 10-5 seconds. Autocrossing $20. Drag racing $40-50.