Here are 75 words, Chris. And no, I didn't just pick these off the top of my head.
I wrote a program that picked them from a spell check dictionary then I manaully confirmed them against the Webster dictionary.
argosy
augurs
augury
gaps
gasp
gaur
gory
goys
grapy
grasp
grays
groups
gurus
guys
gyros
oars
opus
orgy
ours
parous
pars
payor
pays
pogy
porgy
posy
pour
pours
prau
pray
prays
proa
prog
pros
prosy
pursy
rags
raps
rasp
raspy
rays
ropy
rosy
roup
ruga
rugs
sago
saury
soap
soapy
soar
sora
soup
soupy
sour
soya
spar
spay
sprag
spray
spry
spur
sugar
sugary
supra
sura
syrup
upas
urus
usurp
usury
yaup
yoga
your
yours