[blykins]

Nope.

Rev kits are generally for solid cams to help keep the lifters in place. Hydraulic cams don't need them because the lifters are always touching the cam, unless something catastrophic is going on.

Rev kits also work by having springs that usually fit on the underside of the head that push back against the lifters. If you look at how an FE is made, you'll see why that wouldn't work.

It is what it is with an FE and a hydraulic roller. You generally get about 6000-6100 peak out of them before they give up.