67 Barracuda front brake drums, Alignments and tires

Ok, good deal. Actually Pishta didn't say if the mismatch was ok, but now I know it's ok to leave as is until I do some major changes to the front end. I really don't like how these old mopars drive at 70mph on bumpy Michigan highways..feels like I'm battling it. At 55 its fine though. All new front end parts, fresh alignment and all that but still sucks. Coil overs to come for sure.
Thanks though!

Something is not right, mine will cruise all day at 75 mph to 80 mph smooth as glass. Alignment? tires?