thoughts on the edelbrock sp2p manifold

i dont have an intake manifold yet. I am getting information and opinions from people who run 318 engines. i just want to make sure that when i put 2x2 on there it will run ok. i am not really looking for performance gain at all. I want to cruise and go on road trips. i also want something sort of different, and this is what i had in mind. i have had plenty of 4 barrel carburetors and i just want something different. an old stock 318 with a top end that looks old and different. gas mileage is not a bad thing in this case. I know the performer is a good intake and there is room to bbuild the engine better with it. there is one sitting on my sbc 350 with a 4 barrel demon and it works well. I want a gas mileage engine. I have a really cool glh turbo omni that takes care of my speed crave.

so right now im looking at the performer, the sp2p, and the street master. i want the car to run well, idle well, and cruise with the 2:76 gears and look cool

the 560cfm 2 carb and the stock cam. will the performer do what i need it to? I know know for sure the sp will give me good mileage but fall on its face at 4000. whats the performer going to do?