Marcus both of these units will compliment your engine package your putting together. I personally have seen the All Pro heads, and they are high quality pieces, but I'd bet the Mast units are nice also. If I were in your shoes, and had your unlimited budget, I'd let my engine builder make the call, as he will know exactly what components will work best together. I would not purchase a cylinder head, until my builder told me which one, if I were building a engine like yours. But that's me...
Oh yeah, my trip to Dallas got cancelled. Maybe next year!
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