My honest opinion is no, I think they will rub on bumps, dips and turns on the outside edge of the wheel opening.
I installed the Dr. Diff leaf spring inboard kit (which move the springs in a 1/2 inch and i have Caltrac one inch lowering springs) a few years back and mounted my 9/28/15 M/T slicks on 15x8 wheels with 5.5 inches of backspacing and with a 7/16 inch spacers they just fit. No rubbing at the track, but wouldn't trust them not to rub out on the road with bumps and turns on the inside and outside of the wheel well.
Last summer I bought another set of the same 8" wheels and mounted a set of M&H J60/15 (255/60/15 bias ply) tires on them for the street. With 1/4 inch spacers they rub on the inside and outside of wheel well and are only a 1/4 inch from the springs ( the M&H tires have a one inch wider section width than the M/T slicks and the 255/60 M/T drag radials I ran on the 7" wheels) The spacers are bolted to the backs of the wheels to prevent chucking between them and the wheels.