Roll Center Numbers
The numbers for roll centers only relate to the stock blocks in the car. Positions 1 & 2 are for the bottom holes and Positions 3 & 4 for the upper holes. Positions 2 & 4 refer to the blocks being flipped.
The optional blocks are not a number, technically it would be like a 0. So, in that case we were running 0 all around in the front and 1 all around in the rear.
Jeff