>Those of us who've been here for a while, KNOW the classic
>story of why 420a's blow due to boost. It's almost always the
>same, and can usually be easily pointed out; OVERBOOSTING due
>to the owner's attempts for more power without having anything
>but a FPR, or due to some problem with a wastegate or boost
>controller.

Oh yes. Same old story, just the names that change. :)

>of the opinion that someone could probably reliably hold 12-17
>psi pretty reliably if the fuel was there, and the timing
>could be pulled back on the top end.

Lower.. maybe 12-14lbs. Stock rods will break roughly 16-17psi.

Wasn't there an Eric from way back when that was running 12-14lbs on stock internals for a year with upgraded injectors, and a little ignition timing management via an MSD?