Victors
Do you need to completely remove the dash or just move it forward a bit for clearance? If the latter is the case, it's fairly simple. You need to remove:
-the weather strip on each side down in the corners by the sills
-the plastic covers that run along the sills (later cars)
-the two screws on each side on the ends of the dash
-the demist grill
-the screws exposed by the demist grill removal
-the six screws that hold the center column where the ignition switch is and slide the column out of the way
-loosen and rotate the turn signal lever
Doing the above will give you 3 to 4 inches of working room.
Going deeper requires a bit more effort as you will find out once you get this far.