I have an adjustable fuel pressure regulator that i want to add to my tbi but it does not have a port for the return line.Is it neccessary that the regulator have this port to be used on the tbi or do i just plug the regulator into the feed line.

 

yes you have to have a return or it will dead head.

 

gotta have a return line and the fuel pressure regulator should be located on the return line if I am not mistaken.

 

ahhh. forgot to mention the return line part.

 

Yep and yep.

Can I ask why you don't just run an internal afpr?

 

I got the one I have no for free so i wanted to see if it would work.