i have a bad msd coil that i just got...just went bad...anyways is it a good idea to use 2 msd coils and 1 factory or should i use just all factory?

For the time being, I'd use a factory coil, but in the long run, they're better matched. Have you contacted MSD yet? I'd bet they'll warrantee it for you. I hope so. If they don't, I'll buy new stock coils instead of MSD. I'm in the market as we speak.

im am first goin to change the coils out to make sure the bad on is the bad one...i checked the bottom of the coils with a ohm tester thing by sticking little wire connecters w/ flat blade on teh end in there and connecting it to that and hte one didnt read...so im guessing its the bad on but im gunna switch out the 2 good ones to make sure....then i am goin to contact jegs and see if they warrenty it...or what and pending what they say i may contact msd...i see they have a limited warrenty on it that they will fix it for free....for up to a year