First Start Up! Hyd. Cam Break In! Tonight!

I never do a break in with open headers just for the exact reason Steve suggests not to. You cannot hear anything except exhaust. That's all well and good and fun when you KNOW the engine is broken in with no problems, but until you get to that point, I would highly suggest muffling it somehow. Header mufflers are cheap and you could resell them.

VERY good advise. As a newb operator up on the hill at Teck I learned very fast that my ears were more important than my eyes as diagnostic and safety tool's.

You sure cant hear a bearing chewing itself to death over open header's,lol....

Have fun with that big cam. I'd go 4 gear if you havent already,much more fun when you have a big cam.