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..

 

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


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

 

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.

 

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

 

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.

 

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

 

Recommended fuel pressure for Webers is 4.5psi.

 

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

 

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

 

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...

 

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

 

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

 

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.

 

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.