Experts agree that good HEI systems rely on a good module & a good coil. We believe that the combination of a great module & a great coil makes the Flame Thrower distributor the best! Pertronix D1200 Flame Thrower distributor operates without misfires up to a minimum of 7500 rpm....thats 3000 rpm higher than most enthusiasts report with their stock HEI. Produces 67% more energy in the coil delivers twice the energy across the spark gap allowing wider plug gaps (.050-.055). 12 month limited warranty.{specs}