[dynoroom]

I have built many FE's with Fel-Pro 1020 head gaskets, you won't have any sealing problems. However Aluminum heads will bernell or "indent" a very slight amount with the stainless O-ring this gasket uses. This is not a problem unless you remove and install the heads severial times, then you may need to serface the heads. The copper O-ring is not available in the FE gaskets.
Enjoy your project!