need help adjusting a holley carb

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oldfox

Member

Feb 19, 2009

234

6

18

Sep 18, 2009

#1

• Sep 18, 2009

• #1

I have an old Ford Hi-Po Holley that I would like to rebuild and run on my 302.
I have rebuilt Holley's before and know how to set the idle adjusting screws in the front metering block. But this carb also has adjusting screws in the rear and it's a vacuum secondary set up. I didn't think the back barrels did anything until the engine was under a load. So,, What do these do? And how do I set them? I have checked and I'm sure that it came this way

 

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oldfox

Member

Feb 19, 2009

234

6

18

Sep 18, 2009

#2

• Sep 18, 2009

• #2

View attachment 245190

 

woodsnake

15 Year Member

Jan 16, 2007

1,353

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69

Hicksville, NY

Sep 18, 2009

#3

• Sep 18, 2009

• #3

This will be an interesting thread.....

 

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fordmach70

New Member

Mar 30, 2006

12

0

2

Nebraska USA

Sep 19, 2009

#4

• Sep 19, 2009

• #4

What list is that carb? Also is there a fuel transfer tube on the other side of carb from the front to rear bowl? That carb could be set up for 4 corner idle but i wonder if someone just added a primary jet plate to the secondary.

 

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oldfox

Member

Feb 19, 2009

234

6

18

Sep 19, 2009

#5

• Sep 19, 2009

• #5

Just found out what it is 68 Shelby Gt 350 cobra

I put the numbers in Google S8MS-9510-C went to a web sight called
"Ford and mustang Holley 4150 carburetors" scrolled down and there is was.
It was made for a 1968 Shelby Gt 350 Cobra with a 4 speed.- only
The numbers on the air horn and metering blocks are correct.
And yes the bowls tie together only one on the front is an inlet.
I bet I can sell this and just get a new one.

 

O

oldfox

Member

Feb 19, 2009

234

6

18

Sep 19, 2009

#6

• Sep 19, 2009

• #6

View attachment 245120

 

woodsnake

15 Year Member

Jan 16, 2007

1,353

15

69

Hicksville, NY

Sep 19, 2009

#7

• Sep 19, 2009

• #7

I bet you are right. If you decide to E bay it, post up how you did...