What style mechanical fuel pump?

[MrSony]

What style would my Regal need? Two Nipple, or three? One is the inlet, one is the outlet, what's the3rd one do?

 

[TURNA]

return line

 

[pontiacgp]

your pump depends on what sender you have, some senders have 3 connections with the return and others have 2 with no return.

 

[MrSony]

your pump depends on what sender you have, some senders have 3 connections with the return and others have 2 with no return.

I've got got two lines, one sending fuel and the other's the vapor return line to the tank. Two nipple pump it is.