Picked up a boost gauge today where do I plum it in 1990 noni/c

 

behind the throttle bracket in the side of the head/intake manifold you'll find a plug just in front of the air intake temperature sensor. for the non i/c'd motors, you'll have to drill a hole in the throttle bracket to access it easier when installing the copper or nylon line.

 

Right here, I used a hole saw to cut it, on a battery drill on low speed. BE CAREFUL, there is fuel lines behind the bracket. Then I found an o-ring that just so happened to be perfect size and put it into the hole i drilled so the boost line doesn't get cut on the edge of the hole. Lining it up is kinda hard but you'll get it..




Works good.

 

Thanks guys