Cam match to intake

I'm not a fan of that cam. I ran the next size smaller, a 280/474 in a 9.0 to 1 440 in my 70 Charger. It was a decent idling cam and tire smoker. I ran 14 seconds flat at 101 with a terrible 2.6 60 foot time. More practice or a better driver could have clipped a 13.6 with the car.
I built another 440, a 9.2 CR mill with the 284/484 cam. Idle was rougher than the first cam but there wasn't much if any increase in power.

There wasn't much difference in the cam grind, so that makes sense.