I am running a MSD6AL-2 with the MSD billet dist on a 440 with Edelbrock heads,Diamond Edelbrock dome 13:1 pistons. Drag only no street.Should I use resistor plugs or NON resistor?..... I am currently using Autolite AR3911's. I had this engine broke in on a engine dyno and once we started the pulls it started missing around 5300RPM.Was wondering if the AR3911 are NON-resistor plugs? And if so could they be the cause of the miss? What is the general consensus of the board on what type of plug is used? Thanks !!