question I have a 20pound spring I believe I was boosting 20 when I bought it but bought a 14.2pound spring my question is the harder the spring the less boost or the less spring less boost. cuz the spring I had removed is lighter than the new spring which stiffer.

 

The spring holds valve closed, the heaver the spring the more pressure is required to open it.

 

meaning less boost or more boost

 

More I would assume. The wastegate bypasses exhaust gasses around the turbo, thus keeping the turbo from boosting more. So if there is a softer spring, it would mean less exhaust pressure would get it to pop, and retroute the exhaust.