+1 on cascade for flavoring, not bittering. If you already have the fuggles, use them for bittering. Maybe try a pearl or saaz for a spicyer hop. Maybe a simcoe for flavor addition/along with 1oz of those cascade???
for an American ale, I would suggest gold lme instead of amber lme. The hop schedual…1oz fuggels 60min, 2oz cascade 45min, 1oz cascade 10min. (that’s if you want to use the hops originally listed). IMHO you could leave out the fuggels.
3lbs amber LME
4lbs Pilsen or golden light DME
.75lb Crystal 15L (steeping grain)
.75lb either Honey Malt or Special B (steeping grain)
1.5 oz Czech Saaz @ 60 min
.75 oz Czech Saaz @ 30 min
.5 oz Fuggle or .25oz Mouteka @ 10 min
White Labs WLP001
Steep grains @ 160*F for 20-30 min.
And prime (if you’re bottling) with 2.5oz priming sugar & 3.5 oz of left over DME for 2-3 wks bottle conditioned.