I have the 3.1.
Do you have the diagrame for the rs6 with the 3.1?
It shouldn't be a problem fitting the jets in the location you suggested - I am keen to understand and learn, what difference will it make where the jets are located?
Also will I be ok with the pipe length after the FAV. the image below shows the location of the FAV, I've installed under the scuttle panel, top right. And the 4 way manifold center top. It's about 450mm from the FAV to the manifold, and about 500mm from the manifold to the jets.