You can barely squeeze an 18x10 on the back of a '69 Camaro,I know the 'birds have even less room.
Still,I suppose it can be done but the b/s has to be nailed dead-on.
I'd personally call Jon @
www.driverzinc.com and see what his data says,he hooked me up with this setup.
18x10's,5.625" b/s,275/40's:
Fit like a glove,no issues,couldn't be happier...