Ways to Keep Boost In Check via a Tune...S/C

I am putting a Novi 1500 on a ls7, stock bottom end. I am using Meth, frankly, strictly as a safety function...but understand it will promote more boost and power, which I actually dont want

I know you can swap pulleys and the car will already has a restrictor plate but I'd like to know if and how Boost can be controlled or "capped" via a tune??? Will adj. the timing affect the boost?
Im worried the car may see 6-7 psi, but ideally i want to keep it around 5 psi. I want to keep the added cylinder pressure in check as to not push the limits of the thin walled ls7 block.
thanks.
someone on cf said 700rwhp cylinder pressure is 700rwhp cylinder pressure, whether boost or n/a.
that said, I could tailor back the rwhp by running less timing at no detriment to the car, right? and thereby getting the rwhp down into the 650ish range safely, regardless of boost??





