I first want to say what a great site this is :) .And I am hoping somebody can help me out. I'm new into sleds and i just picked up a 1980 artic cat panther. I was wondering what would be a good mix for the oil and fuel? The oil injection was disconnected when i got it. ALso what octane should i run?It blowes out all types of smoke now. thanks

mix at 40:1 and run at least 87 octane