difference between holley carbs

[kelly]

what is the difference between a 4144 and a 4670 holley carb?
I'm running a 4144 and still having problems with it. Is a 4670 a better carb?
It's on my 75 440 with a mild cam.
Thanks

 

[kelly]

I guess no one knows this answer......

 

[super-bee_ski]

Hi Kelly,
I personally did not have the Internet when I was young SO I went to the Wright-Patterson AFB Library in Dayton Ohio and took out a BOOK on Holley Carbs to educate myself.
I later on BOUGHT a Holley Carb book along with a Rochester Quadrajet book
I have some info
Not all CARBS are created equal
Some Vacuum secondary's
Some Mechanical
Different applications
List Number: CFM Front Jets Rear Jets Power Valve Carburetor Type
1850-2 600 66 134-9 (metering Plate) 6.5 4160
1850-3 600 66 134-9 (metering Plate) 6.5 4160
1850-4 600 66 134-9 (metering Plate) 6.5 4160
3310 780 72 76 10.5 or 8.5 4150
3310-1 780 72 76 10.5 or 8.5 4150
3310-2 750 72 134-21 (metering plate) 6.5 4160
3310-3 750 72 134-21 (metering plate) 6.5 4160
3310-4 750 72 134-21 (metering plate) 6.5 4160
4118 725 68 78 8.5 4150
4776 600 69 71 6.5 4150
4776-1 600 66 76 6.5 4150
4776-2 600 66 76 6.5 4150
4776-3 600 66 73 6.5 4150
4776-4 600 66 73 6.5 4150

 

[kelly]

thanks for the info, but I'm dealing with the 2bbr carbs. I'm thinking the difference is a vac and man for the secondarys.

 

[BigBlock61]

Other than it's the center carb for a six pack I can't tell you much more.

 

[jamie]

4670 would be a 1971 Carb. 4144 would be 1970.Just different list numbers for the correct years that's all.Unless there is a different base plate for different vacuum lines on the 1971? 4144 would be jetted for the 390hp 440 according to Holley.

 

[super-bee_ski]

Oh hell,
I missed that!
An I just sold a new in box 70 Six Pack set-up
So sorry man!