Super Jet Stock 61x b pipe jetting

Location
Utica, Mi
Just got a new b pipe and before i order what factory pipe recommends just wanted to see what others are running and tuning?

Altitude about 600’
All stock 61x with single sbn 44
Blowsion f/a
Boyesen carbon reeds

Also water routing- does it matter if i run the cooling line from the stock head to the bottom port on the head pipe rather than the top as recomended?
 
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