Ruckin Chevy,
If I remember correctly from my 54 Chevy 3100, you have to remove the harmonic balancer, remove/lower the oilpan to access the two lower bolts for the timing cover, remove the timing cover, remove the camshaft thrust bearing (2 bolts), remove both timing gears (one on the crankshaft and one on the camshaft, and then you can remove the plate. It's your choice, but if you don't want to tear into the engine that much, drilling the two holes and making them square would do it, as Cletis said.
Samantha