GSP Katana
I have the Gsp Katana with a Saito 180, love the engine but not the amount of fuel it uses. I just bought an RCS 180 gasser for it. There is a guy on another thread ("CRAZY HERB" screen name) he has an RCS 140 gasser on a Hangar 9 Edge 540 and loves it. He just ordered the GSP Katana and is putting the RCS 140 it I think. I think gas is the way to go but be ure to beef up the firewall.