Hypertech makes a Power Programmer Plus that works specifically with a 95 Lt1 auto.
From what I have been told, you are able to adjust shift points and feel. Mid America sells their products. If you wait until a show, you can get 10% off and free shipping. Hypertech also has a web site that can probably answer all of your questions. They also have a great customer care department that can be reached daily during business hours. I hope this helps you!