Fuel Pump and Return Line
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,645
Likes: 11
From: Schaumburg IL
Fuel Pump and Return Line
I know we have been down this road before and I don't want to belabor the point but......
If you swap out the stock AC Delco fuel pump for an aftermarket ie. Edelbrock or Holley what do you do with the vapor return line? This from all info helps to prevent vapor lock. Who has done this, what happened to the line and what problems if any have you had? Thanks.
If you swap out the stock AC Delco fuel pump for an aftermarket ie. Edelbrock or Holley what do you do with the vapor return line? This from all info helps to prevent vapor lock. Who has done this, what happened to the line and what problems if any have you had? Thanks.
Le Mans Master
Joined: Apr 2000
Posts: 5,202
Likes: 10
From: cincinnati ohio
St. Jude Donor '09
Re: Fuel Pump and Return Line (bigvette1)
The holley I have had an unthreaded boss on the pump body that I threaded for the pipe fitting on the return line. You have to drill a hole into the pump of course, about 3/16 so you maintain much pressure.
I've found the Holley pumps run about 8#s which is pushin' the limit of the carb needle and seats anyway.
This setup yields about 5 1/2-6#s
May seem like a lot of :bs to go thru, but I like the return line :cheers:
I've found the Holley pumps run about 8#s which is pushin' the limit of the carb needle and seats anyway.
This setup yields about 5 1/2-6#s
May seem like a lot of :bs to go thru, but I like the return line :cheers:
