Anybody have these heads on their LT1 and how good do you think they are? If anyone has any opinions about these heads then I'd like to hear them. I heard good and bad things, mostly good, about these. I got the heads and cam as a package deal for a great price ($1000 new) so I slapped them on the engine when I did the rebuild. Good or bad let's here it. I'm just looking for opinions.Thanks guys.