Oh yes, this is the ignition I shoulda been running from the get go. Totally tunable, I can adjust ignition on the fly with the retard nob. It lets me go full retard or just a little retarded.
I was full retard with the locked distributor; and we all know "you never go full retard". LOL
The MSD does provide LOADS of spark too. Doesn't really help much power wise, but starting is like 1 000 000 times faster.
I also gave my little box 'o' small blocks a nice hair cut.