i'm running 2 tial 50 mm "q" bov's in my new combo... based on tial's chart, my big cam motor that makes very little vacuum at idle needs a 6 psi spring. however, i'm running 2 tial "q" valves on a twin setup. should I stick with what the chart says and go with 6 psi springs in both valves? the combo has a big stall and big cam meaning once throttle is lifted the engine drops rpm quickly and proceeds to makes little vacuum. I just want to be able to slam the throttle shut and protect my turbos from surge, so what springs do y'all think??? thanks in advance!