LD 340 on a 318?

Anyone looking to sell a Edelbrock LD4B? I'd even consider trading my LD340 for it.

Or, should I just continue to run the Edelbrock 2176 on it?

IMO, stick with the 2176. It is a small port intake. Save the LD340 for a future engine or as swap material for something that you really want/need.