422 dyno fail

This is why I don’t jump on the “you gotta build a stroker” bandwagon. Some combos that work perfectly at 360 cubic inches suck at 408. It’s like having the best worlds famous thick milkshake sitting in front of you a drinking it with an eye dropper.
A better response would have been a properly thought out engine and parts selection will and should yield very satisfying results with stroker engines providing the typical best bang for the buck.