Tim 7139 Gald you are happy. I don't know how weel your cap and rotor are holding up but this is a issue with msd. The carbon connact in the cap, breaks off, falls out, turns to power. Rotor, depending on which coil you are using burns a hole in the spring end or the plastic gets hot and one of the retainer bars to keep the rotor plate in the correct position melts and bents or breaks off. I run the "E" coil and have lost 1 cap and rotor over 15 years. This coils is more for racing than street. IF you travel in the car, a SMALL tool box with the basics of spare, cap, rotor, and distrubutor sensor are great to have if you break down on the side of the road. repair in 5-10 minutes or call AAA for towing. Wrecker guys with roll back do a good job but have yet too see them not rub or do small front spoiler damage to a cobra or vette. i also havw spare 6AL boxes (2).
SEcond note coils, this applies to
oil filled coils mounted on a motor or horizontal. IN the old days yes they mounted them on the motor. Ign output for spark about 30-35,000 volts. Today 80,000 is not out of reach. There have been guys on the club have coils blow, or loss spark when car has been running for a while. IMO
Oil coil is the same as 50 years ago except for double the output and this creates alot of heat. With coil up and down
oil level raises and lowers to cool windings. Some coils used to have a vent. Vibration of the motor was also a oil killer from the vibrations and no hot days would cause a foaming inside and again kill the coil and give a hot spot and kill the winding in side. Coils laying on there side has 1/2 of the winding not being cooled and again you have hot spots. Mounting the coil vertical is still alot better than horizontal. Off the motor another plus.
If you look up some old threads you will find that some of the guys are using standard caps with solid center piles and heavy duty rotors. They paint the caps black to look better than red or blue. Have a good day. Rick