where to tap into for a boost gauge on a 1991 gmc syclone

[91Syclone2918]

Hi, all

I need to install an aftermarket boost gauge to compare to the stock boost gauge...Under just light throttle I see the factory guage peg out, so don't know if I have an over boost condition or the stock gauge is just off.

So, where is the best place to tap into for a mechanical boost gauge??

Thanks,

 

[Rexxenexx]

You can tap into the line in the back of the intake, or buy the brake booster fitting Sportsmachines sells.

 

[gmemony2]

A lot of people tap into the brake booster line.

 

[91Syclone2918]

Thanks for the reply's appreciate it.