Copper Header gaskets

[gixxer]

Ok i have an exhuast leak at the headers to head connection, and I thought Id give the Flatout Gaskets Copper Header gaskets a shot. Does anyone know what port style is on the L31 heads (is it the same as the fastburn heads?). The available styles are : stock w/ port height of 1.5 and port width of 1.510, D-port w/ port height of 1.50 and port width 1.560 and round large port w/port height 2.125 and port width of 2.125? Im asking about the fastburns so ill know which set to get when i do my swap later on.