[Big-Foot]

Hi Mike, No- there is no problem with using a lube on your plug threads. I've not had any trouble in mounting the coil to the cylinder head either since it is getting a relatively cool stream of air from the front of the car.
47 degrees there? Wow - I just checked - it's 12:35 in the afternoon and it's warmed all the way up to =o= ZERO here! It was -7 when I got up with the dog about 6:30... (((chattering teeth)))

Another thing to check is to make sure you have a large enough wire carrying the current to that HyFire box. I know MSD's are REAL picky about that...