Did I over cam my 408 for the street?

I think you undercammed. I run a solid roller in my 350ci 340. Specs are 244 @.050, .550 lift, 110lsa. Running a 4 speed and 3.9 gears. Runs great on the street, idle is good, high vacuum. You'll be fine, heres a vid of how it idles.

[ame="http://www.youtube.com/watch?v=F5LC2IuOdtM"]1966 belvedere with solid roller 340 small block mopar idle and small revs - YouTube[/ame]