massive reconfiguration time again.

Cudafever said
AFBs
I have rebuilt many of them but never in depth tuning, plus the 2-4 i'm way off.
I can only speak holley,
many circuits will work the same or similar. holley power valve. afb metering rod spring weights.

How far are you off from the main jets that came in them carbs from the factory? This may give you a idea how far of you are.
Its apple to oranges when i come to the front main jets as there is a metering rod that has a major effect on cruise jet size.

I think i would put a smaller ............
someone that tunes these AFB need to chime in. i could say something that easily make sence but it just not the truth when it come to a AFB.:(

As you can imagine I've been messing with these carbs for years.
I'm still trying to keep it simple.
I've been trying to work that idle up to a 14-7. I'm pretty sure I went up to the 75/47 earring rods as the 71/47 are in their case.
I'm starting to think throw the 7147 is back in and turn my timing back up a couple of degrees and test on freeway?

Almost positive that I cracked this number 3 spark plug when I was taking it off after the trip but it seemed to be burning proper like the rest so I changed it to pull the car back in with its old plug. I plan on buying a new plug but it would also be kind of a good experiment to see if it turns the plug a different color?