That doesn't give that pump a problem? They are rated at 60 PSI and you'd need to regulate them to under 10 PSI for a carburetor. Will they last like that?
Guy's have been using this set up with great success. I am using the Mallory 4307-M Regulator. My Fuel Pressure is rock steady at 6.5 PSI. I ran an 8an feed and 8an return. I have a stock sumped and modified tank that I added a bigger return to by welding in a 8an bung up high on the passenger side of the tank. I also added a new vent that runs up the filler neck that has 3 good size loops in it just inside the rear quarter and then it turns downward and exits the floor behind the rear tire with a lil filter on it.
The only problem I had with my set up was using a Liquid Filled FP Gauge. I changed it out to a non filled gauge and it took care of what I thought was a fuel creep problem. With the Liquid filled gauge I would set the fuel pressure to 6.5 psi, go on a run and when I got back it would be at 2 psi. So the natural though process was oh man I gotta re adjust it hot. Well doing that the fuel pressure would push through the needle and seat flooding the bowls. Actually UOP helped me with this problem and by changing out to a NON Liquid filled gauge. It fixed it instantly & I have burned at least 15 Tanks of fuel through it and burned through 7 bottles of Nitrous so far.
FP is solid, steady and ready!
Another good thing about this pump is it will LIFT fuel up to 5 Feet so there is no need to mount it lower than your exit on the fuel cell.
Pretty sure member UOP has a similar set up using the Walbro.
This is where the out of the box thinking will mess with peoples thought process.
I learned about this set up over on theturboforums.com and I believe also on yellowbullet.com
