Strong Dark Ale recipe?

Amount Fermentable PPG °L Bill %
6 lb liquid Malt Extract - Amber 42 10 54.3%
3.3 lb Liquid Malt Extract - Dark 35 30 29.9%
1 lb Corn Sugar - Dextrose 46 0.5 9%
10.3 lb Total
Steeping Grains
Amount Fermentable PPG °L Bill %
0.5 lb American - Caramel / Crystal 80L 33 80 4.5%
0.125 lb Belgian - Special B 34 115 1.1%
0.125 lb American - Roasted Barley 33 300 1.1%
Hops
Amount Variety Type AA Use Time IBU
1 oz Willamette Leaf/Whole 5.5 Boil 5 min 1.86
4 oz Magnum Leaf/Whole 15 Boil 30 min 78.33
1 oz Willamette Leaf/Whole 5.5 Dry Hop 7 days
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Yeast
Muntons Premium Gold
Attenuation (avg):
78%
Flocculation:
High
Optimum Temp:
57 - 77 °F
Starter:
No
Fermentation Temp:
72 °F
Pitch Rate:

Any who knows anything about brewing think this might turn out ok? It’s based on some suggestions for modifying a Brewers Best Block Party Amber… Those of you who made suggestions are probably going to be the ones reading this anyway. I used the recipe builder at brewers friend.