You'll need to cut/hammer/grind enough clearance into the body to not only keep it from touching when it's not running, but add a little extra room to account for engine movement when under torque. Things are going to move around a little when you step on the gas- - -usually the driver's side tries to lift a little until the flex in the motor mounts gets taken up.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!