383/438 Build

I’m not clear on how that valley tray is going to seal on that 383 block with the Stealth heads. Those heads don’t protrude further inward to seal over the beveled edges of the tray. Years ago I called Indy Cylinder to buy their tray that some “dude” said would work with my Edelbrock Performer heads, it didn’t work. I believe Andy F’s heads in his pic are TF 240s. I would love any feedback on this issue. I’ve always run the tin valley pan with moderate success, but I sure like the idea of using soft gaskets on either side.