hey guys i'm try to get my carb set up perfectly for throttle response and power, i had jack mill the head 10thousands, and i have boysen reeds, other then that its stock. what main jet should i get ( i think i read 90 is best) and what needle clip position is best to run?

 

90 main is good. Needle in the middle to start.
I prolly shaved it .030

 

that sounds about right, sorry lol, those kind of measurements are over my head completely. i have been playing around with the needle clip position and just havent found the best spot, i dont think i tried it in the middle, thanks alot jack!