Petcock size matters!

[Lucky 1]

I just changed the petcocks on my aftermarket sportster gas tank.
I had one 1/4 inch petcock in the mid position starboard side feeding all 4 carbs
and I changed the layout to TWO 1/4 inch petcocks instead.
The two 1/4 inch petcocks are all the way to the rear of the tank now, and each one feeds two carbs.

It seems to run much better.

I also installed 4 can opener style baffles in the long straight pipes.
The sound now is just perfect.