The one I'm using have short runners with 89mm Tb..I think they make two different manifolds.
I tuned the shorter ones, so thats why am not sure about the long runner performance, it will be easy to cut the runners and shorten them, so am not worried about trying the both ways, it might do well with my setup since all my setup made for top end, so might the long runners equals the equation, so am going to try different things.