The new cam going in mine is high 250/low 270 duration, mid/upper 600s lify on a 112 + 0. I know Squinn was running something somewhat it that range too. I think thats the way to go fast. Proven 480+ rwhp in 396 lt1 car here.

Crazy thing about the cam is that the advertised duration is just a touch bigger than my 847, lol.