1973 duster fit 20"s??

I know not many here like "big" wheels...........18"s on an abody works. Gotta have the brakes/stance/attitude to go with it.............this (not mine) car look good with 18's?????
These are 18x12 335/30 and 18x8.5 245/40's

i know that cars on an airride suspension, i bet he never makes a turn with it dropped down that low, if he does he'll need paint and body work on the fenders..