My fuel rail orings are .450 in,so .020 less would be .430, the two reamers that come closest are .4375, and .4219 respectively. Would it be better to be a little tight or a little loose?
The reason its been so long is beause my machinist made me an F'd up one, without using a reamer, and an extra hole that he plugged with an allen plug, and im finally getting around to getting the reamer for him to make a correct rail.