I am running some serious power drawing accessories like a CB and linear amplifier, and aftermarket stereo and amplifier/subwoofer. I'm leaning toward the motorcrafts, like Worm Drowner said, got so many years out of the first set why change. I do also like the everstart extremes (everstart max now) that wal mart carries, I had one in my 84 that I got replacing a customer battery who had had it a few years before. That everstart is now in my goat, still holds a charge.