Quick Fuel Brawler vs Proform

mopowers said
One thing I noticed about both is that the idle feed restrictors are in the top position. That's easy enough to fix though. On the engines I've had, they've always had more stable AFRs when the IFR is in the lower position. I have no idea why though.

I was wrong. The Brawlers do have the IFR's in the lower position. I had my Brawler 750 (67213) apart tonight and remembered this thread:

The IFR's are in the lower position, but no adjustable PVCR's. Just an FYI for @318willrun

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