422 dyno fail

It doesn’t just fall off a cliff at 5400 where it makes peak hp which is what valve train instability will look like. It’s airflow limited.
I’m hoping the air gap intake will help with this. I should know tomorrow. I will keep everyone posted.

thanks again to everyone who has chimed in with actual input and not comments of why build a stroker? I knew I would get some of those kind of unhelpful comments by posting this thread.