jetting 38 mil slide mikuni 81 srx help

[sxrsist]

just bought this sled and has 38 mikuni slides on it, i am at 1700 feet and -20c . i know loaded question because everyone seems to be scared to say what jets they run but i need a starting point. please

[rminier]

Power Jet style , or regular Mikuni's?
Engine otherwise all stock? Stock twin pipes?
AND, are you going to use an airbox?

Any idea what jets and needle are in the carbs?...and, did it run with them?