Ballast resistor

Im leaning towards ballast needed but PLEASE DO NOT qoute me on this. comparing accel (prestolite performance) to a factory electronic setup to an MSD setup to a NAPA internally resisted coil setup heres what i found.

Accel: as you stated, 1.4 ohms primary resistance.

Factory electronic ign: 1.8 ohms resistance in the coil, approx 1.2 at the ballast. total of 3 ohms.

MSD Blaster: .7 ohm resistance in the coil, .8 ohms in the ballast supplied with the coil. total resistance value of 1.5 ohms, im assuming MSD's coil is just a badass....eh?

NAPA IC14 internally resisted coil: 3.25 ohms primary resistance.

you may try calling prestolite performance to confirm this.