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Taylorman
05-28-2004, 11:22 AM
Are these 660 center squiters?
http://www.***boat.com/image_center/data/520/169engine_side.jpg
Whats the difference in Holley 6109 and 4779 carbs. Are they both 750 double pumpers?

American Turbine Man
05-28-2004, 02:56 PM
Do they have four squirters in the center of the carb? If so they are center squirters.
ATM

Rexone
05-28-2004, 05:15 PM
The 660 center squirters are List # 4224. They are single feed carbs running a transfer tube to the second bowl (in stock form). They are not double pumpers.
The 6109's are 750 double pumpers designed for tunnel ram running inline. (good carbs). More progressive linkage than the 660. Dual feed fuel inlets on opposite corners.
The 4779's are traditional 750 douple pumpers with dual feed center hung float bowls. You'd have to turn them sideways on a tunnel ram due to length of the carb. They're not what's pictured.
Those appear to be 6109's because of the secondary jet blocks. 660's run a metering plate on the secondary side and are shorter.

Taylorman
05-28-2004, 06:40 PM
Thanks Rex one. That response is why i order from you.

UBFJ #454
05-30-2004, 07:07 AM
Those are 6109's on top of an Edlebrock Victor 2R Tunnel Ram.
Another thing about the old style 6109's is that they can be setup on a 2R Tunnel Ram either in line or, side-by-side.
I have a matched set of them that have been worked out to flow between 810 to 818 ... A lot of people that have the 6109's really don't understand what they have and how valuable they really are ... Especially when they are mounted on a blueprinted tunnel ram on top of a properly cam'd, high compression BBC.