Gaskets will be fine where they are under clamp load - BT has them laminated to double up the thickness.
Make certain the PCV is adequately baffled - recently had one where we could clearly see the
oil stream entering the intake runner from the vacuum port.
Oil being sucked through the valve.
We use the blue Viton valve seals on nearly everything.
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Survival Motorsports
"I can do that....."
Engine Masters Challenge Entries
91 octane - single 4bbl - mufflers
2008 - 429 cid FE HR - 675HP
2007 - 429 cid FE MR - 659HP
2006 - 434 cid FE MR - 678HP
2005 - 505 cid FE MR - 752HP