honest opinions needed here

I have been doing a lot of research here on this cam and heads I am about to put in the Dart Sport and it seems like there is going to have to be some give and take on this. its a 360 with a 4 speed. hell you guys know the car by now. Tyler wants this car to beat my Duster and there is no way its going to be done like it is. He wants it to sound like mine and its not going to happen. Everytime I start it he just stands there and says that's sounds nice. Problem is he wants to keep the power brakes and stuff and If I put the components in to do what he wants, he is going to have to spend a lot more money than he wants to do it. So here is what I have come up with. I want to know if this is the best way to go here. I believe I have picked the biggest cam I can to have enough vacuum to not hamper the vacuum for the power brakes and still give him a good sounding, running ride.

K20-223-3 Comp cam Xtreme energy kit-XE268H
7958-16 pushrods
double roller timing chain and gears
going to have the 340 X heads done
stay with the 750 CFM carb

I was debateing on going with the MP-4452992AE cam but decided to stay with the Comp. cam. I have been on the phone with Comp. cams, Jegs, Summit. I wanted to stay with the factory rockers instead of adjustables. all 3 people I mentioned told me I could even running the Thumper cam with stock rocker arms I was going to put in but I would be running into a vacuum problem and had to get an electric pump. So let me know what you guys thing about this combo and if I can tweek this any without him spending a ton of money, let me know. This is strickly a street application and I am assuming probably something I don't want to know about when he isn't around me. Thanks,Bill