Any new developments on Jerry,s pipe?

I have been wanting to test a FTZ pipe before doing anymore 250 pipe development.  I have located one and should have it in a couple of weeks.  Then we will resume with development.

**Edit 1 **

Without getting too technical or giving away any info does anyone have an idea on why the dip on the Shearer pipes?Do the 500 pipes have the same dip and then comes back?Just curious is all as I have no clue when it comes to pipe design.

Dips in the power curve are a result of something in the engine package not being "right".  Most of the time the dip occurs at a RPM where the pipe and the porting are not working together.

I have tried about 10 different porting combinations with the LT250 Shearer/Q pipe and I cannot help the dip and I cannot make the dip any worse.  I think that maybe the same error in theory, or same design formulas, or same error in testing or same software that was used on the Shearer/Q LT500 pipe was used on the LT250 pipe.  It appears the dip is not porting, reeds, cylinder head, ignition or air filter/intake design problem.