[RICK LAKE]

Dlotz you are going to be right on the edge for this. A 65 amp would be better for what you are doing. You have to remember that you need to recharge the battery too. PAPERFORMANCE sell a nice 95 or 105 amp system with external voltage regulator for a cobra. The other problem is if you are running an AMP gauge. Over time you will melt the protector to the gauge and cook things. You are better to go with a Volt gauge. It is simple to line into the car. Another thing is getting a mega surge fuse to save the wiring harness from burning up if you have a major short in the wiring. I have the 120a system from PA. I have a little more electric curcuits than you but had a charging problem with the MSD system, ECU for the FI system, running coolant fans (3) charging the battery, and having lights on. Charging was only 13.4 volts. You want to see from 13.8-14.2 volts at 2000 rpms with all the power curcuits on. This will give a good charging also for the battery. At idle, 13.2-13.5 volts with the same power curcuits on. You will start to drain the battery with anything less. Get the fuseable charging cable also for the new Alt. Good luck Rick L.