First plug change.

The .035 IFR sounds big, but without knowing the IAB it’s hard to say.


Also, if the IFR’s are located at the top of the metering block, you can lower them, and you probably should. Virtually every carb I’ve done wanted them lowered, except two, and one was mine.

I can’t explain why mine doesn’t like the IFR lowered, but you just have to give the thing what it wants.
I need to re-pin the bleeds to measue but it seems like the idle air bleeds were up around .080. Need to verify though I'll do that today.
IFRs are factory fixed holes but in the low position, here's a metering block--3 emulsion bleeds, made before the high-ifr got popular among the manufacturers I guess.
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