im building up an 85 pickup... i just put a weber carb on and i decided to take all off the emmissions junk off the engine and manifolds. after i removed all of what i thought i didnt need I ended up with a large square port in between the intake ports on the head. Can i just block this off or leave it open or am i missing a piece that i need to put there?

 

you can block that I believe as LCEngineering has the block off plate for it.

 

blocked it off on a buddies truck along with the rest of his emissions when we put a Weber on it..runs fine without it so oh well lol