Commando 273 cam specs

Back in the day (1971) I overhauled the high mileage Commando 273 in my 65 Barracuda (really cheaply, rings, bearings, valve job, didn't even hone the cylinders) and put in a TRW cam, 284 advertised duration, only .426/.422 lift. It woke that little 273 up. After I windowed the block a year and a half later trying to drive 200 miles home in second gear after breaking the 3-4 shift fork, I put that cam in the 340 that replaced the 273 and it worked well there. Not sure if it was stronger than the stock 340 cam, but it was at least as strong, and the lifters didn't pump up if I held it in low gear too long.