Manifold Pressure Sensor

I got the manifold pressure sensor installed this weekend along with a bunch of other firewall forward wiring. Here's the adaptor I used between the 1/8 line that comes through the firewall and the 1/4 line that goes into the sensor. It's from an oxygen line that my Dad used and fits perfectly on the sensor fitting. The connector between the two lines is from the aviation isle of an auto parts store in the vacuum line section.