Max,

what a coincidence. I'm currently struggling with a fox .40 I brought back to life after being stashed in the basement 10+ years. I have found fliteline solutions to be very helpful in getting this engine working (though it still needs some fine tuning to get idle on). Here's the link: [link=http://www3.telus.net/fliteline/mkx.html]fliteline[/link]. Hope that helps you out.