In a small bowl combine the flour, soda, spices, and walnuts and whisk to blend.
In a large mixing bowl, beat the eggs, sugar, and oils for 2 to 3 minutes or until very smooth.
Add the pumpkin and beat just until smooth.
Add the flour mixture and beat until completely moistened.
Scrape the batter into the prepared pan (6-cup baby Bundt pan or loaf pan, greased and floured.) and bake 30 minutes or until cake tester comes out clean.
Cool.
GLAZE.
Break the chocolates into squares and place in the top of a double boiler.
Add the oil and place over very hot but not simmering water on low heat.
The water must not touch the bottom of the double boiler insert.
Remove the double boiler from the heat and stir until the chocolate begins to melt.