if you plan to mount the coil bracket with the race manifold you will need to set the coilpack back a little and notch the bracket near the rear bolt of the plenum and slotting the attaching ears will help
using cilpack as a guide i drilled and then nutted 4 long bolts through the bracket creating four studs to set the coilpack onto so i could pull the coil in the future with out having to play with the bracket mounting