MSD or Mallory?

try to explain a little more for you. i use to run mallory s also , the last one i used was a rev pole, in a 426 wedge, the thing was ok for the first coyple years, after that it was a question every day at the track, got spark today? to tell you the truth if summit and jegs didnt sell malory , no body would even consider them, they are just not as up to date ..by the way i do still have a mallory in my boat, its hard to get parts for for one thing, secondly ,it seems to always need parts. I would even go as far to say that i would run a crane unit befor I spent money on another mallory part.
as for the two step...it plugs into the 6al box ,the purpose for it is to limit your launch rpm. you can use it with a line loc or a trans brake, it holds the motor to a adjustable rpm to launch from the line. bracket racing is all about running the same E.T. every time, using a two step helps launch your car the same every time by eliminating human error...
like the rest of the guys said, the msd stuff is of great quality, they are more than willing to help you out over the phone, and they will try their best to keep us happy.
that alone speeks volumes about them.
as for the spark , it will knock you on your ***, be carefull, we even have a special club around here for the guys that get jolted twice or more ... "knuckle head racing ' for those who dont learn the first time.......named after the lumps on the back of your head after smackin the hood.....