The key to making more HP with increased ignition energy is to run wider spark plug gaps!
These wider gaps help burn more mixture, not only making more power, but helping to reduce tailpipe emmisions. That's why Detroit went to EI systems back in the mid 70's. At one time GM had as a spark plug gap spec, .080"!! (That would be slightly over 2mm for those of you more familiar with the French [spit] communist measuring system.)
Also, even more HP (but not much) can be had with wider plug gaps if one jets slightly richer. Too, one's spark timing may need to be retarded just a "wee bit", particularly if one is on the ragged edge of timing advance.
These wires get the PapaDean stamp of aproval, which, with a buck/euro, will get you a cup of coffee, except at that smarmy place named Starbucks.
