I think this is a 395 Husqvarna jug that is totally f..ked. It has some grinding inside the transfers and intake also. I don't think the owner knew what the heck he was doing. If you want to fuss with this I will send it and the postage is extra. You had better be a good welder. The exhaust is the bad thing (see pictures). No guarantees with this except to say it is an OEM jug.