Not to downplay the Superformance, the Interface Solutions MP-15 material is a good quality material to use. I'v seen most of the different stuff out there, BLP used to have a green gasket that worked extremely well, but the material was not available to them anymore, then went to a coated MP-15. Quick Fuel used the same MP-15 for a while, but switched to a Reinz material before being taken over by Holley, they only have the blue gaskets at the moment. The blue from Holley are OK, with a little something to help with sticking. BLP is now having their gaskets made with the Reinz material and it seems to be similar to the Interface MP15. There are also some red and blue gaskets out there that are complete junk, usually the ebay sellers trying to pawn the cheep stuff.

But my favorite gasket out there is the Braswell, it is also and Interface Solutions material but different than the MP15, softer but still durable, and a graphite coating that works well with any fuel and never an issue with sticking. The price shows, but for anything that may be tuned a lot it's a great choice.