What do you think?

I have a heavily ported stock lower intake that I've been thinking about putting on. Since the ports looked a little bigger than my heads, I decided to just put on the Cartech 5.0 upper. Do you think I should go ahead and put the lower on since it is the "bottleneck" of my engine? Would it make much of a difference even if the ports are a little bigger than my head's ports?
 
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