I have a 2000 SVT and was wondering if someone could help me out? When I'am on the freeway and hit anywhere from 75-80 my interior and exterior lights dim, not constant, kinda like a flicker, like I have an amp and it's pulling to much power from the battery. The car feels normal and runs normal when this happening. I've had the battery for about 2 years and have not changed the spark plug wires since I've owned the car. The car has 67,000 and does not misfire or show any problems until I hit 75 or 80 mph. Any info on this matter would be greatly appreciated.
