No Bronze Guides, Any Reason?

Just for the record, I have seen bronze guides wear prematurely as well, I mean like less than 10K on them. Rocker geometry/type, and stem/bore finish as well as oiling/seals all play a larger role when You push the valvetrain. There really aren't any reasons for weenie wagging here, for what the OP is running, any quality valve guide & stem prep work should hold up for years & 10's of thousands of miles so.....................