You're not going to get a straight pipe with a K/N filter to run worth a cr@p no matter what you do...

Best you'll do is get WFO and idle to be somewhat okay...

You'll clearly need more jetting than you have,... so start with a 160/ 52.5 and no spacer (I think that's 3rd notch on your needle: you don't have a spacer),... it won't run good, but you might not burn anything up...
You can't really compare to what most others do, because the 80's bikes have a slightly different carb set-up...

... a baffle or two in the pipe will help...