Hi;
Does anyone have a list of what size metering rods and jets came with the various Carter AVS carbs?

I am working with a 70 Challenger R/T automatic, that appears to run lean - lean surge at highway speeds, runs a little hot, etc. The engine was rebuilt a little warmer than stock - purple cam, exhaust throats cleaned up, etc. The carb is an AVS 4616 (essentially, a 69 "station wagon" 383 application) that is not up to the level of the engine I suspect.

However, all of this is 45 year old parts of unknown origin. I would like to find the correct baseline for the stock, and R/T engine specs, and see if I can scrounge up some rods and jets to do a comparison, rather than blindly throwing parts at this.

So, anyone with the rod/ jet specs out there? There is a ton of info on AFB's (but those parts "don't fit"); nothing on this site or a Google search I could find.

Thanks,
Mark

Factory specs won't be of much use to you with a modified engine and finding a mix of old obsolete Carter jets can be time consuming and expensive.

I would suggest taking the current metering rods and jets out and replacing them with the modern Edelbrock design jets and rods, that way you can buy a new strip kit to tune it with. When doing this swap you will need to change the small metering rod covers with the newer design, no big deal but should be mentioned.

Also, when tuning your engine, be sure you are adjusting the right part, you issues may not even be carb related. Is the engine on a dyno? If not do you have an AF meter or other metering to check your mixture (lean/rich, etc.) how about your ignition, vacuum, etc.?

Here Is One Link

http://www.carburetor-parts.com/AFB-Metering-Rods-Jets_ep_298.html

Another

http://www.tocmp.com/manuals/Carbs/Carter/Chrysler/1965-1979/pdf/Chrysler121-173.pdf

And Like Scott Said , Much Easier To Replace The AVS Covers With The Edelbrock Flat Metering Rod Covers And Go With The Edelbrock Two Step Metering Rods And Jets That Are Available Everywhere

All OE AVS's were lean due to the discombobulated emission gov't regs that were in place at the time. OE AVS strip kits are extremely rare (& pricey if you find one), try eBay or local CL's. You could order a rebuild kit from "the carburetor shop" in Eldon Missouri & he mfr's his jets/rods in house and his rebuild kits come with new ones (not cheap tho). Or X3 what Scott said convert to an eddy strip kit with dia's a bit richer than what you have now. Fill the domed metering rod caps with JB weld then cover em with scotch tape then invert em so the mud settles perfectly flat on the scotch tape then let em set for several days then remove the tape

Here is the chart for what it's worth,still better to go with what Scott suggested.

Modern = Currently available new, etc. What makes them different is that they use a 2 step metering rod vs the original 3 step metering rods.

Dunno if I'd call the two step rods modern, they predate the AVS. One wonders if you could CNC a tapered end to more smoothly meter the flow rather than one, or two, abrupt steps. probably never notice it though.

Oh jeez! You can pick my comments apart all you want, I am simply trying to HELP the guy out, call them whatever you want.

Not trying to pick you apart, I was just wondering if there was something new going on is all. It appears not.

People seem to like Holleys.....which is a two step.

The three step AVS rods were designed for fuel economy and an attempt at emissions and only worked kind of. Any compromise is exactly that. Go anyway you feel comfortable with, but the Eddy two step would be a better option and a whole lot easier to dial in.

Thanks to everyone who helped. I have a junk AFB to donate the metering rod covers, and an old "120" Carter strip kit, so that is the way I will go (kinda cool getting older, that you have accumulated junk that turns out to be useful!)..
This site sure has some great people on it.
Mark