Thanx guys!
I heard back from Cometic today, and they confirmed that a MLS is not available for my application. Here is the reply,
"Paul,
I am sorry but we have only made a MLS for one style of head which Is different than the standard heads for the 250. We can make customs but it would have to be either a copper or composite gasket. To make another MLS will require tooling costs, which can be upward of $3000. I am more than happy to help you with any further questions."
Not sure I want to spend that much on a head gasket, so copper and o-ring looks like the way to go.
Tom,
Thanx for your input. Answers the question I emailed you. I get the hint that you prefer the Pro Magnum over an aluminum?
What about the difference in new lump vs old for a turbo charged application?
Paul