thoughts on the edelbrock sp2p manifold

i am young....and experimenting and learning. I am not dead set on anything......just looking for opinions and taking in all the information posted here. i am looking at the performer 2176 and a 600 to 625 demon carb....the description says it is for a 318/360. these ports are different. my 318 ports are smaller then the 360 and this manifold is cut to 360/340 size. is it still beneficial to run this manifold


I have a 2176 Performer that I just got and a Holley 600 that I am gonna use on my stock 318. It has fairly small runners that I am pretty sure will line up with the 318's. This will be a good combo for cruising and decent fuel economy, or so I'm told.