Slow 1/8 with 74 440 dart

i street drive it every now and then so i went with the 3000-3500 stall and it flashes to 3000. i could withstand more stall on the street though as i'm not too bothered by it. thanks for the advice on the timing. not sure why it likes so much initial though. anything below 25 and it idles like crap. and obviously the idle just goes up all the way to 30 initial. i've messed with the carb a lot and it's not carb related. new plugs and wires has the same issue. i know these low vacuum mild lift big duration cams like timing but damn 30 surprised me. i triple checked to make sure the balancer wasn't slipped lol
What's the duration at .050 of that cam ?