Carb tuning, larger accelerator pump nozzle?

dano said

So do this to move both IFR? If so do they need recessed in the block?

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I looked at the emulsion channels, very hard to see in there. I don't have a pin gauge set. Should there be small orifices behind the threads or are the inserts the restriction?

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No, the IFR’s go in a different position. I’ll take a picture of one of my blocks in the morning so you can see where they go. It’s easier to take a picture that try and explain it.

If you can figure out what size holes are in the emulsion and it’s not ridiculous (I’ve seen them as big as .033) you can just block the one you don’t need.

If you want to be able to tune them then I drill out the holes in them to .080ish and put the hole I want in the brass.