How does this intake sound with my engine combo?

That's a big cam, you might even consider a single plane if you have a 3.80 or so rear end. But the stealth should be fine. I can't answer the other questions because I have a performer RPM.

Check in to the weiand X-CELerator.

That intake comes highly recommended, basically the same class as the perf RPM. I agree with 87gn though, I think your cam is too stout for those heads.

I'll third that.
That's a great cam, but you might like a single plane/Holley carb combo better.
I ran a 228/236 on 110 cam with a 750dp and Torker 289 for years and loved it. Tried the Performer RPM, but the car fell on it's face. I had 4.11 gears and a wide ratio Toploader though... If you don't have gears, you will bog on the low end.
Used intakes are cheap... pick up a mild S/P like X-Cellerator, Torker 289 (not Torker 2 or 302!), Port-O-Sonic, or even Holley Strip Dominator and give it a try.
But again, you need at least 3.80 gears and a Holley would suit it much better, either 3310 or 4776.
Good luck
Dave

BTW: Port match whatever intake you get, but don't go any further with modding it, especially an S/P.

Well in that case, the stealth should certainly work better than what you have now.