In response to the earlier post about the MSD probably makes more torque down low but I've seen no evidence to back it up... Back in the early 80's I had buddy with a T/A that was kinda doggy down low, you had to slip the clutch quite a bit leaving a stop... I put my MSD on his car just to show him what effect it would have, I ran a 440-6 at the time & I felt the multi spark really made a huge difference with cleaning up the multi carb issues, practically any mixture would fire & burn completely... Anyway I added my MSD & we found you could literally dump the clutch at idle & the car would chug a couple times then drive away... It wouldn't die, the increase in bottom end torque was incredible... BTW That MSD it still on that T/A & it still works fine..