HELP !! 275 30 20 QUESTION with 18's

changing my wheels over from wires to chrome ones ...my riviera lays frame .. doing a 20x10 with a 275 30 20 ..and a 18x8 front ..but dont know what tire will look the best ..either a 225/40/18 or a 235/35/18..  any ideas ..??? any pictures of either with 18 and 20's   ..thanx

the 235/35/18s will be the same exact sidewall as the 275/30/20's  (both tires have a sidewall of 3.2") the 225/40/18s have a 3.5"sidewall.personally id go with the 235's. sick car by the way, will look rad with large rollers

thanx bro ...  think im gonna do 225 40 18 ..235 35 18 hard to get that matches the rear tire ...  was hoping sum1 on here did that combination tire with pics .. hopefully sum1 has them .. thanx again