Barracuda tire size
Have P225-60-R14 BFG T/A'S on the front of my 68 Barracuda with 14X6"rims and P245-60-R14 on the back with 14X8"rims. For your 5.5"rims, the size RedFish has recommended (P215 70 R14) or if you want a lower side wall (P215 60 R14).