This was a race I saw on several Saturday nights back in the day. One friend had a 68 RR, Vitamin C orange with a 383 and 4 spd. The other friend had a white 68 Chevelle with the 375HP 396 and a four speed. I don't know the axle ratio on either of them. As long as the RR didn't have poor traction off the line it would beat the Chevelle every time. For whatever reason his Roadrunner didn't have sure grip (he bought the car a little over a year old and he thinks the prev owner made a swap before selling). The RR usually got good traction but if it left the line spinning one wheel the Chevelle got to smile for the week! Another friend had a blue/green Ford Torino with a 390 and four speed that got into the fray every so often too but things rarely worked out well at the finish line for him. The 396 did lose a crank after a couple of years of thrashing and was replaced with a 454.