quick question. Im doin a 13brew engine swap into my fc. Right now in hooking up the fuel lines and im not sure of the fuel flow does fuel enter through the regulator (secondary) first or does it enter through the pulsation damper first (primary) confused is all.

One more thing. not sure on how i should hook up the fuel lines to the fpr. its running in series right now. So should i block the return port and just run the lines throw the side ports or wat??? thank ya much

 

Just need to know where fuel enters first. Ik somebody can help me out plz o plz

 

Primary rail first.

 

thank u thank u.