carb plumbing

jcode68

Active Member

Jul 15, 2003

892

1

29

Massachussetts

Aug 24, 2007

#1

• Aug 24, 2007

• #1

I finally picked up a new Holley Street Avenger 670cfm for my 347 and unfortunately, I have a fitment problem with my air cleaner hitting the top of my fuel regulator. Here's a pic of my plumbing setup on my 600 CFM carb:

I had been using a nice billet aluminum brack to mount the regulator right off the carb studs to keep everything nice and tight, rather than running hoses everywhere. I put the 670CFM on tonight and think I am going to need to replumb everything. Anyone have some creative pics to share on their setup?

 

Dark Knight

Founding Member

Feb 1, 2000

2,578

0

0

Chandler, Az.

Aug 27, 2007

#2

• Aug 27, 2007

• #2

If you have hood clearance, you can run a small spacer or a couple gaskets under the base. Holley makes both.

 

M

mustangdave

My rearend needs a stud and two nuts.

Founding Member

Feb 26, 2002

2,976

1

56

North Carolina

Aug 27, 2007

#3

• Aug 27, 2007

• #3

or just run a pump that doesn't require a regulator.

 

jcode68

Active Member

Jul 15, 2003

892

1

29

Massachussetts

Aug 27, 2007

#4

• Aug 27, 2007

• #4

I got lucky this weekend for a change - I flipped the bracket over and tried it and it fits perfect! Sometimes you get lucky, not often, but sometimes

 

red302

Founding Member

Nov 21, 1998

881

0

17

Peru, IL

Aug 27, 2007

#5

• Aug 27, 2007

• #5

How do you like the Carb? I put a 670 Avenger on my 331 and it runs great. Really happy with it.

 

jcode68

Active Member

Jul 15, 2003

892

1

29

Massachussetts

Aug 28, 2007

#6

• Aug 28, 2007

• #6

Carb works great right out of the box. Had to adjust the float level a little on the primary, otherwise was plug and go. I had been struggling to make my old Holley 600CFM work (model 4010) with my combination and finally made the purchase. Really made a big difference with drivability and the 347 is a monster.

 

red302

Founding Member

Nov 21, 1998

881

0

17

Peru, IL

Aug 28, 2007

#7

• Aug 28, 2007

• #7

I went through the same thing. I tried getting a 570 Avenger to work with the 331, but it just wasn't going to happen. Thought about going to a 750, but the 670 worked out really well.