Not a Road Runner,but similar
Here's a 68 Coronet R/T with the 440 magnum,dual snorkel,4 barrel,4 speed,bucket seats,3.55 rear end that my dad got 2nd hand in 1971,we kept it in the family for 42 years(uncles,nephews,cousins).8-10 mpg on that 35 cent premium gas it guzzled.He told my mom it was...