i disagree.... if you need upgraded internals for turbo,then why not for a JRSC, boost pressure is boost pressure. air volume may differ, but pressure is pressure

case in point, i know a guy and have seen time slips, of a STOCK H22 running 12psi and runs 12.71 in the 1/4 at over 3000 feet

upgraded internals are not necesary for a "low" boost application