Y restrictor size

[kwcook]

I was wondering what the stock size is of the restriction Y?
Where to get a true one?
Does it make a performance difference?
Thanks
Kyle Cook

 

[GNeric]

All the ones I have seen measure out to .054". When I installed my TA-33, I had to open it up because it wanted to hit 25psi with the stock orifice. Mine is now opened up to 1/16" and it is a rock steady 18psi for pump gas.