so after a while of hit and miss. i found something that works pretty damn good and uber cheap.
that squarebing needs the restrictive carb airbox which is always missing and flimsy, 22oz soda bottle cut at the bottom stuffed with a sheet of 222 tpi monofilament nylon screen with a shotgun holeon the side with a pen tip restricting air flow further.
neat thing when the screen material gets wet with oil and you are WOT it atomizes it and it gets into the fuel mix
an expansion chamber from an indian, IDK what the stock pipe is like but mine has a clamp with a bolt.
i ran two springs one from the sidecover mount arm, it already had the holes there, another on the expansion chamber clamp bolt.
i had done this as a quick fix but ran a few days then i decided to keep it after my speed increased from wimpy 25 to closer to 30 with WOT downhills goin 45. here the spring has enough tension to hold the expansion chamber in place but when there is enough back pressure it pushes it off the header and opens up BRRap Brapp Brap.
i had just set the timing to spec same with gap and advance. it seems like a new bike good low end and top.
take the ball and run with it.