Is it necessary to run a return line with the holley blue pump? the reason I ask is because I do not have one on mine with the Holley 650DP. I have noticed that there iare some fuel drops on the pump body. Not enough to form drops but it is fuel. All lines were tight and double checked.



Just asking prior to final assembly of the car, after all it is easier to work in there if the engine is out.



Thanks for your help on this.



Out.

I didn't use one on mine when I had it. Never had any problem.

same here. no return line.