My friend ordered from ohio generator last week. He was originally going to get a 220amp for his blazer then they found him a 260 amp one that would also fit the car gave it to him for the same price and shipped it that day, the alt arived at his door step the next day. As far as performance goes. not too sure yet we have it in and it charges around 14.6 at idle but their isnt a system in their yet