Before we started the install, Spiegel’s GT cranked out 403 rwhp and 390 lb-ft of torque. Although this is great for a daily driver, he wanted more. After loading the Edelbrock calibration into the Copperhead ECU, we ran the car on BBR’s Dynojet again. The results were 457 rwhp and 437 lb-ft of torque, giving us a gain of 54 rwhp and 47 lb-ft of torque from just 4 pounds of boost. But that wasn’t nearly enough!