Maybe I've learned a good lesson . . .

Thanks! I missed that.
I don't know if this is an issue of what they did or relates to the difficulties of running inertia dynos at lower rpms.
Not sure, don't know that much about wheel dyno's, he said it worked a lot better after was his driver.
View attachment 1716215460
Some differences he mentioned shouldn't have mattered (electric fan)
Maybe I also missed it, I'm assuming the airgap rpm was the final intake along with the ported heads. Not sure about the carb.
Was with the Ported heads , airgap, edelbrock q jet
If so, it wouldn't surprise me if the ported heads are hurting velocity in the street driving rpm range.
he said it was minor just blended the 2.02 valve in the bowl