I'm not one to call someone out... but that seems a little high. They (Nova) had the 700 R4 trans and a 4" bored 350. It must of had a really tall gear to get that kind of mileage. I'm not saying this is not true, but it seems unusual to me to get that kind of mileage when today they have 5.7s that are multiple displacement, fuel managment and they are just getting that kind of mileage. Thet use a 5-speed auto and cut down to 4cyl. A 5.7 is 345 cid. The best I remember from the 350 Chevies would be 18-19 with granny shifting and a lot of highway miles
But I'm not a GM guy so I might be wrong on this and we have some sharp guys here and they will set me sraight if I'm wrong
