Since the Carter AFB "Street and strip" kits are no longer available, will the Edelbrock Performer or Thunder series tuning kits work?

Second question, right now:

Primary jet is 89
Secondary is 95
rods are 66/52

I'm way too rich, best guess how much smaller I need to go to get closer, AFR is at 11. AFR is consistent across the rpm range.

Engine specs:
486 CI Hemi (4.15 stroke)
stock heads (cleaned up), intake and carbs

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Often overlooked is the metering rod springs, depending on amount of vacuum they might be raising early...This would be where I start.

What are the carb #'s? Your jetting is backasswards. Dave

4343 and 4139

OK, 4343 is the rear carb for a 66/67 hemi, the 4139 is the frt carb. The factory jetting is as follows;
rear carb, (4343)primary jets, .089, secondary jets, .092(pump side) and .077(passenger side)
Metering rods, 16-543, (.069x.054) (pump side) and 16-544,(.071x.058) (passengerside)

front carb (4139) primary jets .089, secondary jets, .107 (pump side) and .089 (passenger side)
Metering rods, 16-136,(.071x.061)

The old MP recs for general hp use and racing are;

Front carb
left primary.083, right primary .101
left secndary.101, right secondary.101
Rod WOS .055

Rear carb
left primary.101 right primary .101
left secondary .101 right secondary .083
Rod WOS .055

Hope this helps, Dave

GoodDay Gentlemen, It's been about a year since I've been on this forum,but I see this post needs some explanation,since I'm the one that built the engine for sixbarrel including the jetting of it. You guys are correct in stating when you look at the jetting numbers THEMSELVES,the larger jets should be in the primary sides & the smaller ones in the secondary's.This is because of the area that the metering rods occupy.This is how all AFB & AVS's are "OUT OF THE BOX".Sometimes tho, a person needs to look outside the box.
The key here is the area between the metering rod & the jet itself.Take for example if you have a primary jet of 89 & you install a metering rod with dimensions of .066 on the cruise side & .052 on the enrichment side,you will have a much larger area for the fuel to flow than if you use a metering rod with dimensions of lets say .071 on the cruise side & .058 on the enrichment side.
So,when you look at the big picture,it doesn't matter what size jet is in the primary side ,it's the relationship of the area around the jet that is what gives you your actual delivered amount of fuel.
I have jetted it a little rich for a reason,to get it in the ballpark,& I'd rather be a little rich than lean. The fine tuning will come as we get more info.The metering rod springs will be the last to science out,after the jetting is correct.

Liteweight

Daryl is correct

What I'm looking for is how much less area (larger rod/smaller jet) to move the afr up 1.5 point.

Since I need to source rods and jets I'd like to purchase close to what I need based on fellow moparts members opinions, right now doing the math my cruise is at (89-66=23) and power is at (89-52=37). What do I shoot for in size 21/34. So how much a smaller area equates to an AFR increase of 1.5

Just trying to figure out where to start when purchasing rods and jets.

If you're at 11/1 right now you'll need to lean things down by 13.6%. Calculate the area of your jet and rod combo and reduce the area by that much should get you there.Dave

Dave

Thanks, thats what I was looking for.