1967-1969 Barracuda 14" Tire Size

Yes I am sorry another tire size question, but would appreciate some advice on tire sizes that are specific to the 67-69 Barracuda with a standard 14" rim. I currently have P205/70/R14 all around. The FABO archives threads indicate P205/70/R14 upfront and P215/70/R14 at the back(1968FormulaS340 suggestion and others). The car is a 273cu with a 7 1/4 rear end and will be keeping the stock rallye caps. Thanks!!