I'm sure we all know we are converting money to fuel and fuel to noise but I was going to use a noise sensitive airport late at night and I was doing some research to see if I could comply with the recommendations/limits. My Skymaster cannot. I am providing a link to a noise study the FAA did so many years ago. It's interesting that even back them we were among some of the noisiest aircraft and most all of the big offenders (Lear 23, Sabreliner, Jet Commander) are not flying any more. Be a good neighbor and comply with the restrictions/recommendations.
http://www.tc.faa.gov/its/worldpac/techrpt/rd71-98.pdf