I am planning a flight that will max out my airplane. I am looking for opinions as I have never flown it at max TOW and less than half tanks of fuel. It is a 1969 Cherokee 140B stock except for the following: climb prop instead of the stock prop LED landing light uAvionics SKYBeacon I had a W&B done 5 years ago. I am planning a 36 minute flight from south ‘Jersey from 17N (162’ MSL) to KWWD (Cape May 22’ MSL) with 4 adults. Per the W&B I will be at max TOW (2,150lbs) with 20 gallons of fuel of which 18 is useable. Per the performance charts with a density altitude on a hot day of 2,000 feet I need 2,150’ to clear a 50 foot obstacle (maybe less climbing at Vx 75mph) to clear trees at the end of the 3,500 foot runway. I should be able to make it to Cape May and back with the 20 gallon fuel on board or even top off to 20 gallons before leaving Cape May. I know the climb will be anemic but the numbers show this is within performance limits. I have heard tales of the 140 not being a 4 adult airplane with disastrous results. The adults are not big people with me at 175lbs, right seat person at 152lbs and 2 small women in the back seat at 120lbs and 156lbs. Am I looking to be another aviation related statistic or safe to make the trip?