Originally Posted by TURBHOE

i run my driver side to the manifold like stock with a one way valve inline and run the pass side into a fitting i mad preturbo. that way under vacuum it pulls air from crank case and under boost it pulls vacuum from the fitting on the turbo inlet. kinda like the exhuast style vacuum setups only mine is preturbo.

just throwing this out there, my ls6 cam fell off before 6000 rpm also. i had to shift around 5800ish. when i first put it in i set the shift points to 6200. i thought it should surely pull that high. first time out it just fell dead before 6000. even the wife sitting in the passenger seat was like WTF was that, what happened. lmao.