306 or 347?

[~The Jester~]

I've never dealt with that particular cam, but I've heard good things about it. Call them (330-630-1555) and make sure all your parts are gonna work with it. That's an awful lot of duration for a street car. Not gonna be a daily driver for sure. And with .595" lift, you'll have to make sure your pistons are going to clear the valves. Remember that an engine is a SYSTEM and to get peak horsepower, all your pieces and parts have to play nice together. A big ol' cam won't do you any good if you can't utilize it. Not trying to talk you out of that cam, but there might be a better one suited for what you're trying to build.