jetting help

[jackrb100]

My bike has high comp piston, dasa ported head, +1 exhaust valves, mild cam, dasa bored carb 43.5, no airbox lid with sparks filter and full dasa pipe. Current jetting is 45 pilot fuel screw 3 turns out ncvq needle 2nd from top and 200main. The thing is I want to swap the pipe for a stock pipe with hrc insert because of sound testing at the next race. I was hoping someone could give me an idea of what changes in jetting to make. Any help is appreciated. Thanks

[jjm400ex]

install your hrc pipe without changing jets and see how it runs. you probally wont even notice that much of a difference.

[jackrb100]

Ya I assume it will ring slightly rich but I will see how it goes. Does anybody know what the decibel level is for the HRC pipe?
Thanks for the reply.