What kinda boost could I get out of a J-hook on the HY35?

 

If you don't have any unlisted mods, a pound or two over stock. The computer will see the additional boost and defuel.

 

Yup! Won't need it till you get a box with a boost fooler... and even then, you won't overboost till around 350 hp.
Once you get a box.... a turnbuckle, to shutdown the wastegate, is cheaper and more effective.... up to 32 psi boost.

RJ

 

What about runnin one with a SMARTY?

 

then you would get 28-32psi.