3.23 or 3.55 Behind a 318

2.94 is a good compromise gear

still very good on extended highway drives but more grunt than 2.76

It was the default gear in 1966 8 3/4 so there are a LOT of them out there


355 is not terrible on the highway.

very noticeably easier than 3.91

...and again noticeably more grunt than 2.23