22. The combination of the healthy stroker and a properly sized turbo from Precision Turbo yielded impressive results. Run at 7 psi, the stroker produced 759 hp, while 10 psi brought 858 hp. The strength of the block and internals allowed us to crank up the boost on this application to just over 14 psi, where the turbo stroker produced over 1,000 hp! Which 14-psi motor do you want, the stock one that makes 500 hp or the stroker that makes 1,000 hp?