I ran 135/135 with I think 2.3/95 once upon a time on my Novi 48/Riva manifold on a 727. However, no matter what I did, even taking the main jet out and using Mikuni's big external pump, I couldn't make it go rich on top end so that's something to be aware of. It ran great otherwise, very clean and powerful. I attribute it to how Novi altered the fuel flow path through the jet cover and the fact that they were designed for one carb/cylinder.