I had Don Cruz build me a monster stroker engine, The first time at the track I ran 11.6 @ 112 at 10 psi boost, taking it easy. I don't think I even hit 4500 rpm. If you want to play it safe, heads, cam and more boost/alky is the way to go, not bigger headers and turbo, if you just want to go 12.0's the stock stuff can get you there otherwise.
What turbo were you running and what was your 60ft?