double pumper tuning with sbf

D

D.Hearne

New Member

Sep 29, 2000

11,730

6

0

south louisiana

May 3, 2010

#21

• May 3, 2010

• #21

What are you running for a fuel pump ?

 

6

67rcks

Member

Feb 20, 2008

373

0

17

May 3, 2010

#22

• May 3, 2010

• #22

new stock pump, gauge shows some 5-6 psi at the carb

 

D

D.Hearne

New Member

Sep 29, 2000

11,730

6

0

south louisiana

May 3, 2010

#23

• May 3, 2010

• #23

It may need a regulator still, or there's a problem with the float(s) Or a piece of trash in the needle/seat. Have the needle/seats been changed recently ?

 

H

htwheelz67

Member

May 18, 2007

444

0

16

mission viejo ca.

May 3, 2010

#24

• May 3, 2010

• #24

are you running electronic ignition ?(duraspark etc....) if you are switch the 2 wires from the dist and reset timing.

 

6

67rcks

Member

Feb 20, 2008

373

0

17

May 4, 2010

#25

• May 4, 2010

• #25

Just wondering if it works with holley to bend the float arm to somewhat leaner the mixture so that the fuel level is lower than the sight plug.

What is changing wires at the distributor for?

 

D

D.Hearne

New Member

Sep 29, 2000

11,730

6

0

south louisiana

May 4, 2010

#26

• May 4, 2010

• #26

Don't bend the float arm. You may also have the wrong powervalve or a ruptured power valve. Should be a 6.5 in there.

 

6

67rcks

Member

Feb 20, 2008

373

0

17

May 5, 2010

#27

• May 5, 2010

• #27

PV seems OK. the engine shuts down when idle mixture screws are all the way in. 4777-2 is just made to run rich as it is a racing carb. Will 64 or even 60 jets work w/o redrilling PVCRs (67 is OE size on primaries)?