rxseven07

hey what should the pressure be set at in a 13b 6port with a weber on it? just wondering, i have it set at like 4... but the floats seem to run out of gas in 4th gear..

CHEF_EG_1

IIRC, Webers like 2.5-3.0psi. Flow may be your problem.


The Holley Blue fuel pump works great... so does the red.

hornbm

u actually run mine at about 4.5 PSI. I know webers like to run at a lower pressure but I have fuel starvation problems if I lower the pressure down to like 3 PSI or so. Flow isnt a problem as I have a gsl-se fuel pump behind that beast.

Hyper4mance2k

iTrader: (40)

yea mine likes at least 3.5psi 4-5 isbest on mine.

Siraniko

iTrader: (13)

Fuel starvation at high RPM is caused by the carb's stock fuel filter. run the carb without it and at the same time, enlarge the fuel inlet.

rxseven07

Wont It Make It Run Like Shat At Idle If U Increase The Fuel Flow?

REVHED

Recommended fuel pressure for Webers is 4.5psi.

rxseven07

what would be the best fuel pump? i have a mr gasket on there now..

Terrh

iTrader: (7)

I didn't think that you could use an EFI fuel pump with a carb?

rxseven07

what are u talking about? i said i have a mr gasket fuel pump on there.... lol, i done took out that fuel pump used for the FI...

Terrh

iTrader: (7)

I was referring to the thread poster that has a gsl-se pump.

hornbm

Oh, I have a mallory return style fuel pressure regulator. It bleeds the excess pressure off back to the tank.

Siraniko

iTrader: (13)

yes and it will NOT solve your high RPM problem. The gas is not filling fast enough due to restriction. Im assuming that you got the carb got the right fuel jet, venturies etc etc.

85rotarypower

Terrh, with the use of a good fuel pressure regulator, any kind of fuel pump can run on a carb. As long as you can get the pressure down to 4.5 psi, then you are set.