Best carb for a 400.

g1os

New member
Joined
Oct 5, 2020
Messages
13
Reaction score
0
Points
1
What is the best carburetor for a 1972 Bonneville 400 motor? I would like to put something in there that I don’t have to adjust often. I also need a four barrel carburetor.

Thank you
Gio
 

melsg5

Staff member
SUSTAINING MEMBER
Joined
Dec 8, 2008
Messages
23,757
Reaction score
423
Points
83
I bought motor without one
What intake manifold is on the engine?
______________________________
 

melsg5

Staff member
SUSTAINING MEMBER
Joined
Dec 8, 2008
Messages
23,757
Reaction score
423
Points
83
4 barrel.
I assumed a 4bbl.
I need to know if it it a factory 4bbl intake which would be a spread bore design or whether it has been replaced with an aftermarket square bore intake?
If it is a spreadbore design the Quadrajet is the best carburetor for it.
 

g1os

New member
Joined
Oct 5, 2020
Messages
13
Reaction score
0
Points
1
I assumed a 4bbl.
I need to know if it it a factory 4bbl intake which would be a spread bore design or whether it has been replaced with an aftermarket square bore intake?
If it is a spreadbore design the Quadrajet is the best carburetor for it.
Oh it’s definitely factory it’s heavy as hell lol just like everything else on it lol.. It’s the one on the left.
______________________________
 

Attachments

  • 12B2BA4C-013E-439E-8C2F-33A3017E534E.jpeg
    12B2BA4C-013E-439E-8C2F-33A3017E534E.jpeg
    613.7 KB · Views: 3

g1os

New member
Joined
Oct 5, 2020
Messages
13
Reaction score
0
Points
1
Any other suggestions?



I assumed a 4bbl.
I need to know if it it a factory 4bbl intake which would be a spread bore design or whether it has been replaced with an aftermarket square bore intake?
If it is a spreadbore design the Quadrajet is the best carburetor for it.
 

melsg5

Staff member
SUSTAINING MEMBER
Joined
Dec 8, 2008
Messages
23,757
Reaction score
423
Points
83
Holley 4165 series or 4175 series, both spreadbore type carburetors
 
Top