Well the boost guage on my 1g guage cluster doesn't work at all so I am gonn go ahead and hook up my guages.. I haven't hooked up a boost guage on a 4g63 in a long time so I'm wondering where would be th ebest place to tap the vac line for it?

 

The fuel pressure control solenoid. Just t that off
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The fuel pressure regulator to intake manifold vacuum line.

 

Alright thanks alot... I just T-d off the BOV/wastegate vac line on my 420a so I didn't know about 4g63...

 

ive got mine teeed into the fuel pressure solenoid vac line as well, seems to be the best, and most common place.

 

me and my brother t-ed off the fuel pressure solenoid line in his audi.

 

did mine right off of the intake manifold

 

ahh I got it guys thanks alot