What Secondary Roost?
It seen a he351ve and s362 non sxe. I felt the vgt was holding back, back pressure maybe. Ran great with the s300 though
What Secondary Roost?
I would go bigger than a 72 and bigger than an 1.10 AR on the primary and possibly an external gate on the manifold (I'm not sure what fleece does to the gate on those). In my opinion 650+ on a 12v tow rig is pushing it. They just don't have the tuning for it to keep it controllable. It can be done and others will say it can be done but I personally wouldn't shoot for more than 500hp on a 12v that still tows.