I just bought a 66 with a 350 the previous owner threw in a pair of Mickey Thompson aluminum valve covers, The 350 has the stock covers. He said he left on the stock covers because they are less likely to leak.

This is my first 350 so I was wondering if anyone has experience with this issue. If I change over to the Mickey valve covers will it just be for looks and possible leaking problems.

If it aint broke don’t fix it? Did I just answer my own question?