Best carburetor and intake manifold for a 273?

Im am changing gaskets out on the top end of the motor because of oil leaks and my 67 273 commando has a Weiand Stealth 8022 intake on it with an edelbrock 650cfm carb. Should I leave this intake on or swap it out with something else while im going to have it apart? I noticed air gaps in the middle of the head that arent covered and didnt know if those mattered. Thanks!