How do I de-rate my Carenado Cherokee 180 to 160 hp?
I bought the Carenado Cherokee 180 a while ago and never fly it after I bought the DreamFleet Dakota. However, I'm now taking real lessons and I'm taking them in a 140 that they put a 160 in, so now I want to de-rate my 180 down to 160. Get all that? 
I have the AcftCfgEditor program if that helps. Can someone tell me how to do that? I tried in the past to push the 180 up to 235 to no avail. Can someone help me with this?
Thanks!

I have the AcftCfgEditor program if that helps. Can someone tell me how to do that? I tried in the past to push the 180 up to 235 to no avail. Can someone help me with this?
Thanks!