Turbo question

well u can change the pistons and rods to these
http://www.campbellenterprises.com/slant-six-6-performance-parts/wiseco-225-slant-6-six-pistons.php

but i have seen a guy with a stock slant bolt up a turbo and run 13's...

Those pistons/rods, will be over 10 to 1 compression.

I put a turbo on my almost stock slant (TRW replacement pistons, mild cam) and ran 10 lbs boost