Nice manifolds! Quick question though..
Can you use the OEM mounting hardware? (Studs out of the head, nuts and the thick washers?) I've had some past problems where the tubing is too close to the hole where the stud sticks though the flange, and the washer will not fit over the stud.. Especially on the outter, left and right holes through the flange..

From the pictures it looks promising, but I'd like some clarification.. The last manifold I had, the maker said to remove all the studs and use lower profile allen head bolts.. lol.. PITA .. Let me know! Thanks!
-Neil