422 dyno fail

I made the mention that the intake was an old design and done around the 340/360 engine. I think it’s a good intake but on the wrong application here. I could be wrong since I’m just only reading things here and not holding parts.

I gave my worthless 2 cents. I’m just going to spectate from here and learn something.
Check that the vibration damper is not worn out. This happens a lot with old engines and it messes up the ignition and cam timings.