Cobra Make, Engine: CSX4083, NOS 427 SOHC, serial number 589. Dyno'd in 1967 at 629HP with single 4v 560 Holley. Now with 4 Webers.
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The manifold is for a 289. The carbs are 48IDA's, which are the same carbs for the big block motor. Here is a link to a picture of the same setup on my SOHC motor: