[dontlifttoshift]

I don't see any reason the pressure sensor can't go in either the 6 or the 8 hose. I have done charge ports in the 6 before and have not noticed any drastic differences in pressure readings. There are EZ clip fitting that will accept the pressure sensor......I never found one for an 8. There are also driers that will do the same.

I try to set the fan/ac pressure table with the engine cold. The goal is find a minimum speed that will keep high side pressure below 250 psi. I do this with my analog pressure gauges attached to ensure that the scaling for my sensor is reasonably accurate.