Looking for 2 of each, AFB metering rods
16-136
16-440
alternate choices 16-21 or 16-22
Dan
16-136
16-440
alternate choices 16-21 or 16-22
Dan
These in particular rods were for hemi carbs 4139s and 4140s. These were just for these once they went obsolete that was it. I really don't expect to find them but you never know.I buy my metering rods from Allstate carb EDELBROCK AFB METERING RODS - Allstate Carburetor
I don't know the part numbers you list, I go by and so does Allstate the diameters of the steps. I think Allstate sells all the sizes still made. I know some sizes are no longer made because I have some laying around in my carb box.
three step rods are for the AVS, will work in an AFB, but designed for the AVS to help with fuel mixture as they started to phase in EPA regulations in the 70'sI needed to match them all up anyways. If you can use any let me know. I think many of the 16-*** are a 3 step rod, the 4 numbered ones are self explanatory. The 3 digit ones IDK. Now my eyes hurt and I am going to bed.
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Thats what I was thinking, Find the area of the rod and jet and calibrate to the OEM spec.For the hemi besides actual size there was a taper, and location of step difference, so they are specific. Salvaging old ones from carbs, or moving on to a newer rod and calibrating are your only choices. Every once in a while, old stock shows up for sale.
Can you explain that in more detailThats what I was thinking, Find the area of the rod and jet and calibrate to the OEM spec.
If you know the original dimensions of the jet and rod step sizes the you can calculate the area of fuel flow:Can you explain that in more detail
If you know the original dimensions of the jet and rod step sizes the you can calculate the area of fuel flow:
(3.1415 x R squared) of jet - (3.1415x R squared) of rod diameter.
If you know the dimensions send them to me and I can help.
Sounds like you are looking for 3 step rods which would use the domed metering rod covers.
Primary jets are 89 thousandths, 2 step metering rods, one carb step rods are 71 x 61 thousandths the other carb step rods are 67 x 58 thousandth.If you know the original dimensions of the jet and rod step sizes the you can calculate the area of fuel flow:
(3.1415 x R squared) of jet - (3.1415x R squared) of rod diameter.
If you know the dimensions send them to me and I can help.
Sounds like you are looking for 3 step rods which would use the domed metering rod covers.
What Don said ^^If you know the original dimensions of the jet and rod step sizes the you can calculate the area of fuel flow:
(3.1415 x R squared) of jet - (3.1415x R squared) of rod diameter.
If you know the dimensions send them to me and I can help.
Sounds like you are looking for 3 step rods which would use the domed metering rod covers.