im having a problem where out of the blue my tach will stutter sharply and the motor will die. it will start missing alittle bit and when it does the tach stutters and the car will die like u just shut off a switch, no backfire, spit, cough or anything. after it dies though it will start right back up. i have an autometer tach, msd 6al box and msd pro-billet with the blaster ss coil