10 sec 6.1 ?

if you go above 6psi on any stock internals 3rd Gen Hemi you are asking for a blown motor. replacing the internals opens the door for 20 psi boost making power

I've read of many running more than ten pounds without incident. It seems the tune is the issue, not the stock parts.

the kenne bell and procharger kits come with 8lbs pulley and they run without problems i think