340 cam specs?

Sounds about right.
And that's about what I remember about my 340s: with a manual trans and 3.55s, I always had to use the flywheel to get moving, and mine had to be wound up to pull. And my stockers (69 and 70),quit pulling around 85mph. Shifting to Fourth was sorta dead. Still, the stockers went almost 100 mph in the quarter.
Those VPs suck. I always had to keep the Rs on the cam; the right hand was always on the shifter. It was better after I got the 4.10s,lol.
But I've only got about 10 years driving experience on three of those early models after which I switched to 360s.The Dart was peppier than the BarracudaFB, I guess because of the approximate 300 pound difference in the chassis weights.