My intake to heads fitment was not great on my engine, but the normal 1205 didnt work well for me. I really didnt like the paper material the 1205 is made from. I ended up with the S3 version and it went together well with that. So far, no leaks. I never assume that I will get the gasket back, though, especially on an SBC where you need the sealant in place for the install.