Intake gaskets

I was test fitting the new Weiand Action Plus intake on my 360 and noticed that the bolt holes didnt line up, even with the blue felpro gaskets, so I took the old offy intake and sat it on the motor and they all matched up fine.
The paperwork with the new intake said that I need to use gaskets that are atleast .050-.060 thick. How thick are the blue felpro intake gaskets
PN FEL-MS90109. They were the thickest that the parts store had in stock.
I can order the Mr. Gasket Ultra-Seals that come in 1/8 or 1/16.
The heads or block have not been milled.