Dan,
I like the Boss block, and yes, it is a Windsor. Yes, it costs $1800 and needs some machine work.
I thought that TFS offered their intakes in both deck heights, but you are right, they only offer the Clevor intake in a 9.5" deck height.
I still would rather use a race block for really high horsepower engines, if possible instead of grout fill. One other possible solution would be to sleeve the block, but that isn't cheap...
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