now i understood this as the small switch red wire correct??
if so just hook it up to the original coil + wire and bypass the ballast resistor...
then
solder a lead to reach the starter relay stud for the Thick red Power Feed wire...
I used the Coil wire from the Ballast resistor like Kid said for the "Switched" power lead. I also run the main(Thick) power lead to the battery side stud on the solenoid and fused it with a 30 amp fuse and fuse holder at the stud..
This is where problems starts and everything go's hay wire.It is a power wire,the only thing it does is turn the box on Thats it.I see all kind of problems in hear about MSD and now I can see why.You don't reinvent the wheel.
IT IS GOOD to install a relay triggered by your original "ignition run" circuit, especially if you have other switched circuits on that wire The relay, however, has nothing to do with "MSD or not."
The switched wire is a LOW CURRENT "trigger wire" just like a relay.
Hook the thing up to either "ignition run" or to your "ignition run relay" and forget about it.
Only reason to run an ignition wire through a separate toggle is something like anti theft