Honestly...how good was the 318...mpg / durability / hp

YY1 said
Any given one could be screamer or a puppy.

Totally agree. 318 . No 2 were alike. My neighbor bought a 72 Cuda new. Traded her 69 Belvedere.
Both were 318 cars. She said to me "My Cuda seems like it has a bigger engine". It did run good.