I put a sbc triple in my 03 a little over a week ago and have put around 500 miles on it. The first 200 were pretty rough. It acted a lot like you said yours does dirty_max. Now it feels pretty well "broke in" and seated and isn't all that bad on the street. Or maybe I've just gotten used to...
I hate sitting at home for three days waiting for the phone to ring to go to work. Then I sit first out for 8 hours just to get bumped. Half an hour after I'm bumped my turn gets out. Railroaders will understand.