241 red ram hemi in a 64 dart 4 door

hey thanks guys all this info is a huge help keep it coming and anyone think a 2.94 (i think thats what the add said) would work for the rear end i wanna drive it almost everyday and still get in a run or two in the weekends and it not eat me alive on gas but still put a hurt on these little hondas and crap you see around all military bases