If you don't have tolerance to amphetamines, you should probably find yourself pretty high after a while. IIRC Adderall is 75% dextroamphetamine and 25% levoamphetamine. The levo is slightly less potent, but dextroamphetamine is very potent. 80mg of pure amphetamine, of which 60mg is dex, is quite a bit of speed. Without tolerance, some people would be nicely high, some people overstimulated.
I no longer use amphetamines very regularly, but for example around exam time I usually build up a tolerance, and if I took 80mg of dexamphetamine (which is what I use, as they don't have Adderall here - although I've tried it and I prefer dex by far anyway) I would probably not enjoy it. It must be said I usually don't want extremely strong effects from my amphetamines and prefer moderate doses, but 80mg could potentially be rather uncomfortable. They are fairly clean stimulants, though, and particularly dex has fairly negligible peripheral stimulant effecfts.