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This is misleading. The "NASCAR" spec single 4-barrel legal stock car racing 427 typically dyno'd at about 700 hp. Horsepower TV recreated some of the old "425" horsepower engines of the 60's (Ford, Chevy, Mopar) and their stock 427 was 679 hp with the High Rise heads. The NASCAR engines had the Tunnel Port engines, which added about 50 horse to that 679, depending on tune. Oh...but the Shelby cars had 2 Holley 4-barrels, not just one. Not much gain under street conditions, but at full throttle.....Dan Gurney bitched bitterly about the sudden rush of power and how hard it was to control. Enzo Ferrari bitched even more bitterly about how his GTO's were getting their asses handed to them at every race. Boo Hoo.
Most "427" Cobras were 428's, or 427 medium-rise head engines. Both of which would have been better at street duty than the full-out race engine. Unless I drive.
A CSX4000 REPLICA being among the most significant Cobras ever built?
Puhlease,,, how much money did Shelby slip the author for that load of BS. The CSX 4000 wasn't even the first replica, it was just another replica among many. You can't BUY a name or change history.
Wait,,,, I guess you can, the author of this piece just did with that plastic CSX4000 baloney! LOL