what do you do different on turbo heads compared to a NA head. Do you go for peak cfm, make bigger exhaust runners? Have a set of cnc tfs-r heads and was comparing to mine and noticed a 1262r gasket has to be cut alot. The exhaust is a hair smaller than mine but more of a round shape compared to mine. damn thing has a deck from hell which I like since mine have been decked from the na motor.