This DVD is nearly 90 minutes of information on Pontiac tripowers. Starting with Basics, then to Troubleshooting, and Modifications. With today's fuels, larger motors, aftermarket cams and heads, modifications are necessary to get optimum performance. The DVD has and Index so you can "click" on an area and get the information you need. There are 22 areas, most 3-4 minutes. If you can't see the Index in the picture attached to this item, areas are listed below BASICS...Understanding Idle Circuits/Understanding Power Valve Operation/Installing Fuel Lines and Fittings/Setting float levels/Removing Throttleshafts/Sealing Throttlebodies/PCV "F" Fitting/Power Brake Fitting and Line to Booster/Ported vs. Manifold Vacuum/Choke Operation TROUBLESHOOTING....Rough Idle/Flooding or Dripping/Hesitation or Bog MODIFICATIONS....Opening Up Idle Circuits/Modifying Power Piston/Changing Jets/Opening Up the Venturi/Modifying the Airhorn/Larger Throttlebodies/Making a Clone End Carb/Electric Choke The video was professionally filmed in my shop. Professionally produced. In this DVD, I answer many questions I have been asked over the last 20 years. Satisfaction guaranteed. Below are 2 sample clips from the DVD, which contains over 20 clips.