Join Date: Aug 2001
Location: Lawrenceville, PA, USA
I am wondering if anyone can help me. I just bought a new sending unit for my 79 Z28. It only has a single fuel line. The original had the fuel line and a return line. However, the motor is no longer stock, no emmission equipment (no vapor can). So the vent line was plugged on the car when I bought it.
My question is can I use the single fuel line sending unit?
I imagine I will need a vented fuel cap since I don't have a vent line to the tank. Is this correct?
Does anyone know if the 79 Z's had a vented cap?
And while I am asking, why would an automatic transmission car have a different fuel sending unit than a manual transmission car? I have a 4spd and the auto trans sending unit was almost $80 more.
Any ideas would be great.