318 complete combo suggestions...

I have a numbers matching 1969 Barracuda with a 318, auto. I have done a disc brake swap and I have an 8 1/4 rear end.
I would like to wake it up nicely. It will never, ever be raced, tracked or autocrossed or anything like that. It will see some longer (6-8 hour) highway trips to car shows but will mostly be driven around town. I would like to install a sure grip post in the back. I will be running a 15" tire.
I am wondering what suggestions may be given for rear end ratio, transmission mods (converter and shift kit), suggested cam, heads, intake and carb - as well as anything else you may offer.
Looking for a fun car to enjoy and feel some power but nothing crazy.
Thanks for reading and for the (anticipated) suggestions!