After babying and tinkering with the engine for 5 years now I'm fed up with it. I googled and came up with a 6.5 HP predator at harbor freight. I had seen the blue max drop-in a few years ago but it looks like it's extinct in the wild. Would the HF work without having to modify anything? I've been spitting the old fashioned way but I cut a big dump trailer full of old doug fir that was decked up for 4 years and most of it too big to split with 3 wedges including the pyramid type and the fancy fiskars maul. There are 3 stuck in a log while I wait for a new bar to cut them out. I'm stuck with bucking it up and renting a splitter for a day this year, got a late start and ended up with more than I bargained for. And there's at least 20 cords worth left that I can have for free lol.