1987 318 Tuning with Summit Carb

sarguy01 said

I don't think I can change the IFR. I've read about putting wire in the IFR if they aren't a screw in type. I don't even know where the fuel enters the idle circuit.

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I haven’t seen a carb like that in 10 years or so and I forgot exactly where the IFR is.

If you can get to it to drill and tap it you can change it.

Did you ever get a measurement on the idle air bleed?