318 build #2 "cost minded" for the '74 Duster

at what elevation 5000 feet?
friend of a friend cant drive maybe
stock 3.91 cars were 14.1@99 mph
how did i go 14.3@ 97 mph stock
if a 4 spd 340 3.91 with slicks goes 14.0
99 mph in a body is 13.7 13.8 with taction
98 is 13.9ish
97 is 14.0 41.1

if you hook thats what it is

a duster with slicks 3.91 4spd should go 14.0 backwards imo
maybe he could not shift or shifted @ 4500 or 7k
Were at 600 ft. I don't want to turn this thread into "what did 340 cars run factory stock". But it would be a cool thread to start!