Treadwear is a non-standardized manufacturer indication of tire grip/wear. Higher the number, harder the rubber, longer it will last, less it will grab.
So you need to have tires with a marked treadwear of 190 or UP on the tire sidewall.
Mistake By The Lake Racing (MBTL)
88 Thunderbird "THUNDERBIRDS ARE GO!", Ex Astris, Rubigo / Semper Fracti
A&D: 2014 Sebrings at Sebring (NSF), 2014 NJMP2 Jurassic Park (SpeedyCop), 2012 Summit Point J30 (PiNuts)
2018 Route Sucky-Suck Rally Miata, 2019 World Tour Of Texas 64 Newport