CSX2000 Rear End

[Harpoon PV2]

Does any one know the Rear end gear ratio on CSX2000? I ask, because I have been rereading all my Cobra material collected over almost 50 years and reading the great little Brooklands book, Cobras And Replicas 1962-1983, which is comprised of different test articles from the period. In the September 1966 issue of Motor Trend, they tested one of the first 427s and got a 1/4 mile time of 13.8 seconds. That sounded real familiar, so I went back to the first test in that book September 1962 Road and Track where they tested CSX2000, you guised it 13.8. The 427 had a rear end ratio of 3.54:1. No mater how you tune a 260 engine, it can not put out the power of a 427 rated at 425hp and 480lbs-ft, it had to be in the rear end! Make sense, if you could pin a potential customer or a journalist to the seat, it would sell great! The second article, which should be the first, since May comes before September, written by the Godfather of the Cobra, John Christy had no times for CSX2000. Fun side note, the 428 tested in 1967 by Car & Driver turned a 12.2 1/4 mile! It had a 3.31:1 rear end, 390 bhp and 475 lbs-ft.