Inliners International Forums General Discussion Blown and Injected Boost / Vac Gauge tap location

Hello All,

I have been taking the time while the weather is crummy to get a few things fixed. Another T5 trans is in and shift / sounds much better, oil change, fuel filter, boost management...

I an replacing my cheap plastic pressure line to my boost gauge with a copper one. As of now, I have it tapped in a air cleaner spacer so it only shows boost (above throttle plates). I want to put the tap in the manifold so that I can read boost and vacuum. Where did you all tap the manifold? I did notice that there already is a large tap (? 5/8") that is from the factory. It is angled, directly below the carb and about an inch deep. Can I piggy back on this one?

Hope all is well and good luck with your builds.

Boucher

You can piggy as long as the hole goes all the way to the plenum.
A quick drill & tap anywhere in the manifold will work also.

MBHD

I used the large accessory vacuum port on the carb. Not sure if you can use it though because I think it's used for the power brake booster (assuming you have power brakes). It was either any full vacuum source on the carb or make the pre-drilled holes on the offy manifold work.