MSD 6AL
 

I own an '87 LX ex-special services car. Minor mods, KN air filter, aftermarket dual cat H pipe, and 2 1/2" cat back, and under drive pullies. I Installed a MSD 6AL box and now its missing when the engine lugs. I installed new cap and rotor, and new taylor 8mm wires. Still misses. any ideas???

I had a 6A on my car and it ran fine. That is, untill my mech had to relocate it during a head and intake swap. Instead of running the power wires back to the batt, he hooked it up directly to the alt. Ran like S*#T after that. I don't know if he fried it, I haven't tried it since I took it off but it ran just like you described untill I removed the adapter harness and plugged the fact plug back into the coil.