Finally installed a GM crate engine for 95 blazer, 2wd. Everything runs really good but I'm having trouble with my vacuum lines/ fuel tank breather line? Does anyone have a good diagram of where the vacuum line from the HVAC goes (front/rear of intake?)

Also, it looks like the 3rd line from the fuel tank (breather) plugs into a sensor and then is there an additional line that connects from the sensor to the front intake or is that for my HVAC???

Thanks,

 

I found a diagram of my intake and apparently the front vacuum fitting is for the "fuel purge canister" and the large rear fitting is obviously for the brakes. So where does the HVAC go?

 

I found the HVAC port on rear of intake

 

Holy Moly. You answered your own questions in record time.