That's good to know that Ultra now sells those. I remember them as the 454 when it was sold under Edelbrock. Also remember they had 409's, and 426's.
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Josh Campbell- Pushing the limits of my HOA since 2011
71 Firebird- 455, Ridetech front suspension.
67 Camaro RS/SS clone, Speedtech front suspension, coilovers, soon to get LT1/T56.
82 Z28- cheapie beater, soon to get a 406.
66 Mustang coupe- 393, T-5, sold.