PRH
Well-Known Member
I would like some more carb but it was a 650 proform I had and had upgraded the main body to bring it to 800.
If you started with a 4777, or another smaller carb that has the emulsion tubes pressed into the main wells of the primary metering block, then there is probably some room to improve the carb a bit with a swap to a different metering block that doesn’t have the emulsion tubes.
Is easy to tell if they have the tubes, because the main wells will be capped nearly flush, instead of having the normal “cup” installed.
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