1987 Ford Mustang higher performance

go to summit racing, they have a hyprotech that is put in where the stock chip is. The chip goes in the computer and changes the settings for more horspower, they have a couple of chips and the more performance ones will cause your car to use more fuel The e-mail add is summit racing.com or you can try just putting in google hypertech and there web site should come up. if you install a new performance chip make sure the positive side of the battery is disconnected and the positive side is grounded so there is no static electricity when you put it in. It will come with instructions.