Custom/Hybrid B-Pipe to Power Factor Pipe carb jetting

[speedysprocket]

Is there a general rule of thumb or trend for carb jetting when moving from a B-pipe to PFP...?

 

[Little_Franny]

Similar, I didn't have a b pipe to begin with, but put a power factor on a stock 62t/62t with a lightened flywheel and used factory pipes jetting as a starting point, jets worked good, both my highs and lows are turned in more than the recommended, but runs great

 

[kevbo]

Is there a general rule of thumb or trend for carb jetting when moving from a B-pipe to PFP...?

Your pilot is probably rich enough if it sputters a lot at 1/4 throttle. Always open the top screws until power declines and lean from there.

 

[McDog]

No changes for me.

 

[Schmidty721]

I went up one size one the main when going from a B-pipe to speedwerx dry pipe.

 

[Blue]

Bpipe to pfp on a 898 with 46s only needed 1/4 turn on high screw

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[speedysprocket]

Great, thanks guys.