422 dyno fail

I get all of that but that low of HP?? I think it should be darn close to 500lb ft. I asked the shop about porting the intake and they didn’t recommend it which also seemed odd to me. I know Edelbrock isn’t known for Optimim HP but again I think it should of at least made 1hp per cube…
Honestly I'd like to see the rest of the flow numbers on the heads. 255 at .600, I would see 255 by .500 normally, at least , or its not really ported...its bowl blended with a good vj.
What if...
Now what if you dont have a stroker...
Think about that.