I have been looking for days with no luck. I'm sure one of you has hooked up and msd on there car. What do you set the 6al box on 4cly or 8 cly for lead and trailing? the car has 13b with distributor.

 

search the first gen archives, I believe I saw it in there.

 

http://www.mazspeed.com/msd.htm

Also what cowboy said, a lot of folkes are using different coil setups.

While a lot of racers use the msd some swear by the stock ignition system. The only way to know for sure your car is to dyno before and after.