Those who relocated the battery, grounds?

OK so i relocated the battery and i DONT have any starting problems. However, my twEECer wont work with the computer now and i think its because its not grounded well enough. So where did you guys ground in the front of the car? I tried to find a place on the frame to ground it, but i cant find a good hole. I figured since the battery was grounded to the block before, if i do that again, i should be ok. So...thoughts?