Those Waggin duals don't look bad at all - sort of like the Dutra duals. Actually I have a Dutra Dual set-up plus 2 sets of Clifford (I think) shortie-style headers. The Dutra Duals won't work with either the triple SU or Weber set-ups but would be perfect for the Offy dual one barrel, Offy 4 barrel manifold or a Super 6.