setting pinion angle??

ok i bought a random tech torque arm and have it installed im trying to set the pinion angle. how do i find this out. the directions told me to get the stock settings and set the torque arm to the stock setting then adjust from there. my problem is that i snaped my old torque arm so i have no clue the stock pinion angle. how do i find the pinion angle and what do i set it at to be close to stock.

Not positive, but i thought the stock pinion angle was 0 degrees. Maybe someone else will jump in and answer.

The artcle on the Random Tech torque arm in Camaro Performers stated most Camaro have a 1/2
degree positive pinion angle.