The pulls were started at 3500(498.2ft/lbs)so no idea what it would be like at 3000.
I wasnt the one actually running this particular motor....... I probably would have started at 3000 if I had been running it myself.
On these mild street motors I like to see the point where the bottom starts to really fall off, and it's obviously lower than 3500 on this one.

It takes way more than a big cam to make power to 7k on a bb mopar.
If the heads, intake, carb, headers won't support it, then it just noses over wherever the smallest "cork" starts to come into play.
Then you can have a situation when the cam is too big to make any bottom end power, and the rest of the build won't support high rpm power..... So you end up with a motor that's just kind of "flat" in the car.

I'm sure a few trips to the track will reveal where your combo sits.