I ordered a whirlwind prop and Jihostroj governor a while back and asked for the governor to be sent ahead of the prop so I could install it and confirm that the cable routing was going to work. Couple of gotchas here; Whirlwind doesn't sent a gasket with the governor, so I had to source one separately & the bracket that attached the cable to they governor is part of the FWF kit which I didn't order from vans. Rather than the vans part, I elected to go with the governor bracket sold by Showplanes because they specifically sell one for the PCU5000 governor. The Jihostroj is a clone of the PCU5000, so that seemed to make sense, and sure enough, it bolted right up. One of the stop screws on the governor was in the way of backing out a screw utilized for the mounting bracket, so I measured where it was originally set with my micrometer, then screwed it in enough to get the bracket on, reset it to the original height and re-safetied everything. I also had to slightly bend the fuel line from the spider to cylinder 2 so that it wouldn't rub on the bracket. This is right out of Vans installation instructions and isn't specific to this particular installation. I have a sneaking suspicion that when I flip the governor control arm over to connect the cable that maybe one of the stop screws will be in the way of the cable travel and I may have to take this all apart again to reclock the faceplate, but for now it's on. The result of all this was to discover that the prop cable was about 1/2" too short. Drat. I messed with this for way to long experimenting with snaking that cable this way and that trying to squeak out another 1/2 inch, but ultimately just bit the bullet and relocated so that in now comes through the firewall above the recess. I hate to have an extra hole in the firewall, but it's not the end of the world and now I have a routing with nice gentle bends and lots of room for adjustment when it comes time to rig the cable throw. The cable isn't hooked up to the governor yet but it's operation with this routing appears butter smooth.