Originally Posted by MRX4-R03
Instead of running the o.s. modded h/s needle just use the orion h/s needle the holes are big enough..
u mean change to orion h/s needle mean change all h/s needle include nipple right,can i know you you os cab hsn,lsn how many turn,i am using os speed reducer (red colour),& 2430 pipes thank a lot