Edelbrock/Carter carb ID and questions

[mountain14er]

Hey all,

I'm trying to get my bronco to pass emissions and rejetting the carb to altitude seems like a good place to start. The engine is a 302 and the tag on my carb says "Carter AFB competition series." I've heard that's the same as an edelbrock performer.

I'm trying to find the model number (or cfm) but it's not jumping out at me. It's a manual choke and it does have some random numbers stamped on it but nothing that means anything to me. Also, does anyone know of a good source of jet/metereing rod kits? I think that napa has them but recommendations would help.

Thanks.

 

[broncnaz]

There should be a 4 digit number that is the P/N. I have a listing of P/N so I could tell you what size it is. any place that sells Federal Mogul parts shoud be able to get the metering rods your looking for. I've heard the Edelbrocks are the same but dont know for sure.

 

[RangerRob]

Take a look at the Edelbrock.com website for info on these carbs. They have a chart for doing what you are describing. Be sure and write down what combination of Primary jets, Secondary jets, Metering rods, and springs that you started with. You can select the right replacement (or at least a good starting point) combination from the chart. Installation is simple and tuning is pretty easy too.

Good Luck!!!

 

[mitzel]

the original carter AFB 9000 series had three basic models with
part number cast in one of the front feet (I think it was on right side).
9400=400cfm, 9500=500cfm, 9625=625cfm. if the carb part# exactly
matches the basic part# then it's setup for chevy linkage. if the last
number is 1 greater than the basic part# then it's setup for chrysler
linkage. and last number is 2 greater than the basic part# = ford. e.g.
9625=chevy 625cfm, 9626=chrysler 625cfm, and 9627=ford 625cfm.
the other twist to the part numbering is adding 10 to any of the above
examples indicates EGR provisions. e.g. #9637 ford 625cfm w/egr.

to determine jet size I think there's a common part# prefix '120-' then
either '3xx' or '4yy'. the '3xx' means the jet diameter is less than .100
diameter (.100 - .0xx). e.g. jet #120-315 would be .100-.015=.085
diameter. and a '4yy' means the jet is over .100 diameter (.100 + .0yy).
e.g. jet #120-415 would be be .100+.015=.115. I think the
metering rods may be directly stamped with the diameter of
the two steps.

the edelbrock performer carb owners manual available on the
edelbrock website has diagrams that show the effects of various
jet and metering rod changes. you should be able to find your current
setup on the graph and then find what changes are required to go
one or two steps richer or leaner.

 

[mountain14er]

Great info

Thanks for the help. My carb is a 9605S which I now know mwans that it's 600 cfm (verified elsewhere). It's a manual choke so this should mean it's the same as an Edelbrock 1405. The website is a great help and I found a local source for jets and metering rods. Again, thanks for the help and I'll let you know how it goes.

 

[mountain14er]

updated info

So I talked with a tech from edelbrock. Although the carter and the performer look the same, the guts are different. The stock main jet on a performer 600 cfm (pn 1405) is 0.0100 and the stock on the carter is 0.0098. So all other jetting info on the website is useful but not accurate. For me, he recommended going from 0.0098 mains to 0.0095 mains and leaving the metering rods alone. This is good since two jets are way cheaper than a whole "tuning kit." ;D