Hi, I purchased a set of Edelbrock valve covers (#4485) for my 350. The hole in the driver side cover doesn't seem to accept a breather. I bought the edelbrock breather (#4405) and it won't fit. Also, there are baffles (welded or riveted) in place and there were no screws or backing plate to screw in as described in the instructions so I figured I didn't have to do anything there. there is a gap in the baffles and vapor is escaping. The pcv valve on the passenger side fits like a glove.

did I buy the wrong parts?