FBO or MSD what do you use?
I run MSD6AL box, Pro Billet Distributor and Blaster II coil and MSD spark plug wires on my daily driver.
My only ***** with MSD stuff is the Distributor and Rotor getting rust residue...I tried sealing it with Silicon, but that didn't help.
I just ordered a new Cap & Rotor from Summit ( $40.00)