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. It threw a rod at 846 miles due to a crack in the middle of #4 rod that was undetected at the time of the build.
For my stroked 440/493, I went with the 292/509 cam. This idled a bit rough but with almost 500 inches, it would have been worse in a smaller engine. This engine was a real killer. Fast, quick, fair idle and fun to drive.
If you want honesty, here we go:
The cam isn't what I would pick for a strong street build. It needs more compression to run to ts potential but if you are not willing to swap in something else, you can still make it work with a few changes to the combination. The intake is barely better than the stock iron intake. Small ports, small plenum and mediocre flow. The 484 cam needs a bigger intake to feed it. A Holley Street Dominator or the Edelbrock Performer RPM are really tough to beat for a street Big Block. The Edelbrock carburetors are okay for stock or nearly stock engines but beyond that, they often are hard to tune. A Holley 750 with vacuum secondaries is another proven performer and has HUGE support in terms of tuning parts and advice. Next up.... exhaust! Many people choose to retain the stock exhaust manifolds but the truth is, even a stock engine benefits from headers. The further you deviate from stock, the greater the benefits you will see with headers. I laugh and shake my head at the old timers that swear they make just as much power with their "Magnum" manifolds as others with full length headers. The HP gain between log manifolds to Magnum manifolds is less than 10 in a stock engine. The gain of headers on a stock 440 Magnum is 19-23 HP depending on a few other factors.
Finally, the 484 cam needs a bit more transmission torque converter stall speed than a stock 440 cam. A converter vendor will have better advice for that than I can give.
Oh yeah....GEARS! I hope for your sake you are running a 3.55 gear or thereabouts.