Weak spark?

[nystreetscene]

CSB turns over but does not fire at all. It was suggested that this could be caused by a weak spark. I have an accell coil, wires, msd ignition module and split v plugs. Any suggestions on what would be causing a week spark?

[pat mccarthy]

with the msd you run 12 volts. on older cars the first thing i do is cut out the resister wire or the resister block and put in just wire .all the gm HEI like 12 volts and do the msd have seen this a lot on older car that came with points if not a older car look for what denny said and make shure you have good grounds