Group ND Proposal
The ignition system is free save that the number of ignition coils being used cannot change.
Note: A wasted spark coil assembly or a 2-outlet , 1-piece coil, will be treated as a single coil.
Justification and Rationale
This provides sufficient freedom for cars with both EFI and carburettors and levels the playing field somewhat.
Limiting the number of ignition coils will potentially only effect highly modified forced induction engines and prevent a move to more modern coil-on-plug systems which , whilst common in performance road car modifications, will be visually and obviously incorrect for the PERIOD.