I was wondering how you enlarged your throttle body if you happen to have machined it yourself. I was thinking of doing it to mine, but I keep running into snags. First, I can't put the thing in the lathe because of the weight imbalance. I might be able to put it in a BIG lathe, but if I tried that on our smaller ones at the schools machine shop the guys running it would **** a brick. Anyway, I was then thinking I could mill it, but I don't know how to make a circular cut with a standard mill, only on our CNC. Just wondering how you did it before I reinstall the CAD program to cut on the CNC. Thanks.