name that member

How do you get "mile" from 4 totor homes?
the 4 pictures show the ET and trapspeed from a drag strip
judging by the numbers, they are for a 1/4 track

there is 4 of em, so that adds up to 1 mile


(though it could also be a /6 in the 1/8th)


and "no" on chemical imbalance