1984atc250r carb swap

[xr650r]

Hey I have a new motor bored 60 over,dg pipe and stock airbox.Putting on a flatslide off a 1987 250r.How should I jet to start with?I know every bikes different ,plug chop to.Just need a starting point.Thanks

[nicker71]

160 main 50 pilot

[xr650r]

Thank you will be painting or powder coating this week