Trivia: How much did the 440 option cost for a 1968 Roadrunner?

kt340sport said
There was 440-4 option in 68 or 69 road runner 440-6 only .But just checked my records for 1970 road runner one was built with a 440-4 RM23UOA , was an Automatic.

makes sense a rarity would come from Lynch road