i just installed a boost gauge on my redtop w/ smic + t25 and the gauge shows vacuum under accel and pops up to 0 between gears. never goes above 0.
gauge is t'ed between stock hot pipe nipple and wastegate actuator.
what the hell. could this be because of a leaky valve cover gasket, which i'm pretty sure i have? or is it a problem with the actuator or somthing?
post about valve cover/gasket
http://zilvia.net/f/tech-talk/269240...-question.html