Yes. I installed the MSD system (including MSD wires) in my 69 Barracuda with a moderately modified 340. I followed MSD's suggestion of bypassing the ballast as mentioned by @abodyjoe. The improvement was marked. Instant starts, better idle and better throttle response. It's been about 4 years, and there have been no problems.Anyone installed this using an existing engine wiring harness with ECU? I've been tolds its much easier and simplier to run a new harness with the ol ignition point system, connecting the 2 ballast wires together using this as your 12V switched power to the coil.
Any help out there is much appreciated.
Totally agree.i have one in our dart. i pulled the ballast out, connected all the wires that went to the ballast and added a wire from that connection that rins to the dist.
I am truly sorry that happened to you. Mine has worked flawlessly.My MSD left me stranded. Only a few months old. I am going to rewire it so I can run the MSD but Have the older wiring so I can plug in the stock system if left stranded again.
My MSD-6A boxes were straight garbage.I am truly sorry that happened to you. Mine has worked flawlessly.