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I have the Edlebrock Elite series valve covers. They barely clear the wiper motor. On the left cover I used bolts to mount it because the studs were too darn tough to get the cover over the with the wiper motor there. I don't know if these will clear the tuned port tho, sorry. Maybe you can tell from looking at the picture:
I had the tall GM Performance Parts aluminum racing covers on my 85 and to make them clear the wiper motor I had to shorten the wiper mounts and trim the plastic cover and they worked. But now I have the same covers but shorter and they clear my roller rockers and wiper motor no problem.