OK- - - -for now, ignore the "dwell" part- - - - -it just confuses the issue. Set the point gap to specification, and don't worry about dwell. I don't have any experience with the Innova light- - - -I use professional-grade tools and my timing light is a Snap-On. There should be a way to set the timing advance indicator to zero and use the light as if it did not have an "advance" function. Connect the power leads to a good source of battery voltage and ground, and attach the flash trigger lead to the #1 spark plug wire. With the engine running at idle and the vacuum line disconnected from the distributor and plugged, turn the distributor housing until the flash shows the ball aligned with the pointer. Lock the distributor adjustment down. The timing is set.
Jerry