After my youngest brother was born a Valiant just did not function for two adults and four children from newborn to 14. So dad traded the Valiant for a 67 Merc Montclair in 69. Had a 390 2V. Probably 2.75 gears. I ended up with a 65 Galaxie more door with the 390 4V and 2.75 gears. Both got about 20 MPG US. Mine has a burned valve and it still got that mileage. Used to put $5 premium in and fill with regular with no problem. Could probably put $20 of 91 in and fill with the "cheap" stuff. Is better than an 80 LTD wagon with either a 302 or 351W in it.