When I put up my 65 Mustang (check My Library for photos) in the garage (attached, 2 car, heated and insulated) for the winter, I take the cables off the battery to keep the alarm sysytem from running it down. Is it better to have a full tank of gas or low tank of gas (with Sta-bil or the like either way, of course)? Any other suggestions for it sitting about 4-5 months?