I have the exact same valve covers and have had a similar issue.
Send an email to Edelbrock and ask them to send you a couple of baffles.
I did that offering to pay and they replied the same day stating they were in the mail to me already. Sure enough, 5 days later (I live in Canada) they were in my mailbox. No Charge. Tremendous customer service in my opinion.
Best of all my problem was solved.
Give it a go and good luck.