Post your wheel and tire combos.

Rears in 3/4 lips trimmed.
Front lips removed entirely. The big brakes in the front change the offset slightly, but the 18" allows me to use a 6.4" backspace. It fits perfectly. I can run tight clearance because the body doesn't roll too much, tires are stiff and the offsets are just right.

Currently I have 255/40-18 in the front on mine with 8mm spacers, there is easily room for the 275/35-18 on mine. The lip is rolled on the front and I modified the leading edge of the front fender. The '67-'69 Barracuda fender has a different shape than the Dart. I made a photo garage on the fender mod: 1968 Barracuda Front Fender Modification for 26" Tires

On the rear I currently have 295/40-18. It will easily fit a 325/30-19 and might even clear a 345; I previously had 325/50-15 Drag Radials under the rear with plenty of clearance. Car has mini-tubs and relocated springs. The fender lips are rolled in the rear also.

Here is a link to pictures of the car undergoing chassis mods and paint: 1968 Barracuda Notchback: Paint and Body 2014

Body and Paint 80.JPG