The Victor heads are drilled incorrectly on the inner bolt holes they dont go through the head only about 1.5 inches up from the bottom like a HEMI head even if you drill right through the head they wont line up with the threaded holes in the Ritter block was talking with Kent to Dave from Edelbrock about the mistake but never got a final answer . I plugged the block holes then redrilled & tapped to match the head
