Personally, I would never install a 1.94" intake on a 194 cylinder head, had too many problems hitting water jackets destroying the heads.
I had better luck by turning down a 1.94" intake valve down to 1.90", then unshroud the chambers. But even with a 1.90" valve it's pretty thin.
For better durability, ( a bit safer) I would just use a 1.84" valve.
MBHD
