edelbrock intake info please

[musclcar]

my buddy has an old edelbrock dual plane intake for a sbc the part # is C3BX this stamped on the front.does anyone have any info on it like rpm range years offered and if it was installed by any dealers.someone said this was for a 3bbl carb ??[img]/ubbthreads/images/graemlins/[/img]

[JoeG]

Hello musclcar, There was a C-3B Edelbrock hi-rise manifold for 283/327/350 to be used with the 3bar.holley--------I'm guessing on yourC-3BX, your plenum divider has been completely opened ,instead of just a notch cut for the 3bar. sec.throttle plate------------JoeG
The first advertisement I found for a C3B Edelbrock manifold is '68.

[musclcar]

thanks for the info joeG what was the rpm range for the intake ? he's thinking of selling the intake and needs the info [img]/ubbthreads/images/graemlins/headbang.gif[/img] [img]/ubbthreads/images/graemlins/biggthumpup.gif[/img]

[JoeG]

It's suppose to be a good mid to high rpm range manifold.
If you were going to use a 780-800cfm Holley--3.70-4.10 gearing should do it. If you are going to throw on a 3bl.carb, you should go for 4.56 or steeper.---JoeG