okay my friend gave me a MSD Blaster Coil 2 and when i install it is there anything that needs to be installed with it i am running the stock distrubitor and i remember in the book saying something had to be installed between the negative or postive wire on some distrubitors if any one knows what this is or if you do need this i would be very thenkful of your help. and also has any one have this installed on their car

91' LS 5SPD