'67-'69 Barracuda rear tire size

me too

I heard "without issues".
With a lowered car,325s are a little tricky.The rear end has to be exactly centered in the chassis. Aggressive cornering will not be without issues until you either roll the lips or pound the offending high spots in the inner wells. At stock height you might be OK. until you hit a bump on one side only. At 1inch up I think it might be a non-issue.
I'm at least 1.5 inch lowered.
With 295s there are no issues whatsoever. You can push hard. You can even jump it. Don't leave the skidplate in the shed......