3.0 case for 87 3.2,help w ref sped sens

I am building a 87 3.2 in a 3.0 case to go into a kit of a 904 porsche. The 3.0 case is not set up for the speed and reference mark sensors i think. Although there is matal there to put a bracket a am not sure where the exact placment is. If anyone has any info or possible leads for this it would be a great help. Ideally I would like to find the number of teeth from TDC to the center of one of these sensors. Mark