I have a 4 cylinder Holt engine that came off a Massy-Harris harvester. I am about to delve into it as my next project and am wondering if anyone knows where or who has any information about it. I think is the 45 hp model. A picture of it is here http://albums.photo.epson.com/j/AlbumIndex?u=3009545&a=30598676&f= It's the one with the red flywheel. Thanks in advance, Dave