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I'm only getting -10 of vacuum on my vac/boost gauge. When I unplug my PCV from vacuum block (and leave it open) and seal the port on vac block, vac moves up to -17 (where I would expect my stock setup to be). So... it's something related to my PCV. The grommet is snug, and I tried applying some...

I need to test for vacuum leaks and i'm caught between a glass of macallan's 18 and a nice cuban cigar, or a fat california kush blunt to test for the leak. Any advice?

Hi, I have a strange high pitch sound after I turn off my car. The exact location is hard to pin point, and it runs for about 30-45 seconds after turning my car off. I posted a video with sound here: https://www.dropbox.com/s/tx5ohvmltdeqjgf/Video.MOV?dl=0 Any thoughts?

Hi, I run a tt chip with #60 inj and 255 walbro with hotwire. When pushing her hard (around 15# of boost) she was knocking per my scan master. I turned up the fuel pressure to 45psi (without vacuum) and knock is gone. Does this make sense? The instructions and common wisdom is 43.5psi on fuel...

Hi all, I just bought a GN 87' stock 40k miles. I'd like to make some mods, but keep it to a minimum (no alky/turbo replacement). My goal is to have the fastest GN possible while keeping it as stock as possible. All I have now is a scan master and I'm thinking of getting a 93oct chip (TT)...