The FE is a different animal. The intake gasket is essentially submerged in
oil.
I will say that, to this day, I haven't not had any issues with Windsors and using that 1262 gasket. The majority of my Windsors use AFR and TFS heads and they all get that gasket. As a matter of fact, I don't like using the steel gasket because there is not a lot of "give" on the sealing surface.
One caveat: I use sealant and I also make sure every intake manifold is flat/straight/angled correctly on the flanges. I feel like that is the problems that most people face. You can't simply buy an intake manifold and bolt it on.
On FE's, I will use Mr. Gasket paper gaskets, with sealant.