[scott70]

Well while I was reading some q&a last night about whether this light would work with mSD ,I did see where there were a few that said it didnt work for them where the majority said it did. So thats why I asked here to see what your experiences were. I guess Ill just try it when I get it and see how it works. I took out a DUI "tripower" small bodied HEI dist that I was having problems with(another thread) and replaced it with a MSD ready to run billet dist. Using my old gun on both dist I will say the MSD has the most stable timing mark in awhile. Id rev up the motor with the DUI and the mark would move around some especially the higher the rev. This new MSD dist has a very stable timing mark at any RPM. I did have to send the MSD dist back though cause out of the box there was zero shaft end play and it wouldnt spin freely with my fingers. I sent it back and they said they replaced the shaft. I measured it when I got it back and has exactly .010 now and spins freely. I measured my DUI ,which only had about 1000-1500 miles on it and it has .035 end play when I took it out the other day.