I've come into a carter "competition series" 800 cfm AFB carb, and am in the process of cleaning it out and getting it ready to install.

I'm trying to figure out the jetting...

The primary jets are 120-392
Rods are 7347

Secondary jets sure look like they are numbered 120-302 !

The only thing I have to go on here is the info in my elelbrock 1406 600 cfm carb manual and the tuning kit I bought for it. Similar stuff, but not identical.

The primary jets are leaner than anything in the kit, and considerably leaner than the stock jets for a 600 cfm carb.

The rod # is a match for the leanest rod in the kit, 1 step leaner than the stock 600 cfm rod.

The secondary jets are in left field somewhere. The elebrock manual shows the sec jets on thier carb are typically 5% or so smaller than the primary's (cause there is no metering rod sticking into em?) A carb that came stock with a .098" primary jet would have a .092" secondary with a number around392, not not 302!

What am I looking at here?

Eventually I'm gonna just record what's in there and put it back together and try it, but I'd like to have some idea where I'm at.

edit: the number on the carb is 3479 9635SA

well, left to my own devices (sometimes I hate Saturdays here!) I decided to...

Simply move the jets, rods, and springs from the old ede 1406 (which was dialed in on a chassis dyno) to the new carb.

The new carb, she work real good.

My 383 defintely is not starved for air anymore. better all around, even idles 100 rpm lower, and I haven't even put a vacaum guage on it yet.
I leaned on it on this lil road where I do that sometimes... usually hit about 90... looked at the speedo just as I shut down, 115 and I never took her over 5000 rpm!

Just put on the FI unit and be done with it....

well, left to my own devices (sometimes I hate Saturdays here!) I decided to...

Simply move the jets, rods, and springs from the old ede 1406 (which was dialed in on a chassis dyno) to the new carb.

The new carb, she work real good.

My 383 defintely is not starved for air anymore. better all around, even idles 100 rpm lower, and I haven't even put a vacaum guage on it yet.
I leaned on it on this lil road where I do that sometimes... usually hit about 90... looked at the speedo just as I shut down, 115 and I never took her over 5000 rpm!


Never! say never.

Never! say never.

haha... got dibs on a used Holley commander 950 tbi... it'll be off to holley to be flashed with the latest software, then headed my way.

That darned carter runs so good, it could be a while before I put it on tho.