[RICK LAKE]

Tim G 427 Tim, I know from personal experience That the old "7" boxes had problem when they first came on the market. Some people let the smoke out of them. As others have said, running heavy gauge wire for the power feeds to the box is very important. I run 10 gauge directly to battery and multi ground straps to chassic, "2" to engine block, and all other ground connections of the electric system. I have "4" with start washers that cut into the metal when crushed. Trying to start a car with a weak battery or jumping it with a dead battery will burn out any MSD box. I don't know why but have seen this happen many times. If jumping give the car 5-10 minutes before turning to start. A full charged battery should be in the 12.5 volts and have a min of 500 CCA load. Mini starts will crank over a motor with 7.9 volts. This is not enough for the MSD box and will cook it. Weal connections again have too much resistance and cook the box. Keeping a trickle charger on the battery is a good idea. As far as mounting a MSD box, any where is fine. I have mine upside down under the glove box and have not had a failure in 14 years with a 6AL. I smoked the first one because of welding on the car. All systems where off but the battery was not unhooked. Turned key on and SMOKED. Buy a tube of clear silicone and dye electric grease and coat the connections with this. Tube of clear is to seal the box from moisture. I do the bottom of the box seals and terminals going into the box. Coat the connections with thin coat of grease. These boxes make alot of heat, try and mount it where you get a good air flow to it. Use a Tee and run the foot box hose to it. They also sell small fan boxed to mount and blow air on the cover. The cover is a heat sink. This helps extend the life of the box. I don't know if this helps but, after car has been sitting for a week or so, the battery will drain a little. Starting the car will spike the electrical system. There is not alot you can do about this. If battery is fully charged this helps. Rick L.