HEI vs MSD comparison

I run HEI on everything now. MSD works great but it's pricey. I have a GM HEI module hidden under the distributor. Check this link out Mopar HEI Conversion I'm sure the purest will jump on me because it's not a MOPAR part but believe me after you make the switch you'll never go back to the old Chrysler box :) I left the old module on the firewall for looks and no one knows the difference. I just cut the back of the ballast resistor out and put a piece of wire in there instead. Nice thing is you can go to any parts store an get everything you need. I used this same setup on Fords too. Works great. Just make sure you get a HEI coil.