I have. I ran MSD COPs before. They worked great. I run GMS hard Core Series now though. I ran them naturally aspirated and with a twin-screw.
Good stuff! The OEM COPs work fine but the aftermarket make the car run smoother, idle better and they add some ponies too. With forced induction they will eliminate spark blow-out and add even more HP.
thank you stonepony for the answer, last year I ran an 11.75 at 118, this september I am going to run the same event and see if I can do a little better, I am going to try the msd cops