I had the pleasure of going to the Toys For Tots Fly-In breakfast at KAVP in northeast Pennsylvania this past weekend and met two Pilots from New York who flew in. They took me on a scenic around the area in a 1967 Cherokee 180. I noticed we were cruising at 3000 and the airspeed peaked around 139 knots. The pilot showed me the Garmin GPS and it showed 127 knots. In the DF Archer I only get it to max out about 115 - 120 at about 80% power. (I never asked what power setting the 180 was at.) I was wondering if their was that much difference between the DF Archer and the Cherokee 180. They looked pretty much the same. Thanks.