This is awesome, I had the same idea with my '56, I had a spare 454 lying around so we built it to run like a diesel. Conservative compression, but a nice cam profile that dynos at 408hp but makes 525ft-lbs of torque at 2,700rpm. Great vacuum, nice idle, and pulls from 600RPM to 6,000RPM with a super flat torque curve.
I'm running 22.5 tires also, I really like them. Handles great on the highway.
