Thread: tuning with a vac gauge?

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I am still using the factory TBI and manifold. I found an Edelbrock performer for the TBI setup. I would like to look at this and possibly shifting the cam earlier 4 degrees. I would then be interested in a computer chip system. Once the engine is living up to its (mild) potential, then I want to look at the rear gearing. At the moment I am not sure of the rear gearing or the torque converter. They are factory......I bought this truck with a shot motor for a work truck and it has blossomed from there. I am using it to learn the process of performance. I have a background in performance motorcycles and this automotive performance is a new thing for me. I guess I am saying that I have a decent base knowledge but the hands on is still coming along. So all the experience you can share is great. Do I sound like I am on the right track?

Timing specs were initial using a rollback light. The components are mild and probably not quite matched but I believe them to be close for my application.
I like the idea of the vacuum gauge. It is a direct measurement that I can read in numbers. I can see the dial increase to its max and decrease as the timing is advanced to far. I can then repeatedly and predictably retard the timing back down a measureable reading on the gauge. The timing light doesn't really allow me to visibly monitor the engine like the vac. gauge. I still have to set the timing either to a predetermined point or keep advancing through trial and error until I notice ping/decrease in performance and back it off a few degrees.