1/4 return line to small?
1/4 return line to small? I inherited a clusterfuck of a 78 Vette from my father who passed. Im going to finish the car for him but give it some new tech. I had a 5.3 laying around and put a dorman LS6 intake and a LS9 cam I had laying around. I originally wanted to run a supercharger I had laying around but it ended up not fitting. So Im putting together the fuel system and it came with 3/8 feed line and a 1/4 return line from the mechanical pump on the 383. I dropped the tank and swapping the sending unit for a 82 unit which had a in tank fuel pump. I have a aeromotive 340 laying around but figured thats way to much pump for this 400-420hp setup and the small return. I am using a aeromotive external regulator that I had already and billet rails with 60lb dekas (overkill I know but I dont have anything smaller). I could get a walbro 255lph and hope it flows less to not overpower the 1/4
return. But I wanted to ask you guys before obviously commuting. FYI running new fuel lines on a C3 is a PITA and im not pulling the body off the frame. As you can also tell Im. It trying to sink a lot into the car as the car needs ALOT of work. Remember the 82 sender I believe also has a 1/4 return at the sender so I dont see how upgrading the return is worth it since it will still have a bottle
neck.
so 1/4 return with a 340 or 255... will it be too small?
return. But I wanted to ask you guys before obviously commuting. FYI running new fuel lines on a C3 is a PITA and im not pulling the body off the frame. As you can also tell Im. It trying to sink a lot into the car as the car needs ALOT of work. Remember the 82 sender I believe also has a 1/4 return at the sender so I dont see how upgrading the return is worth it since it will still have a bottle
neck.
so 1/4 return with a 340 or 255... will it be too small?
