Is there a drop in replacement for the hard to find, OS .25 and .46 needle valves? I have several engines that I really do not want to drill the crankcase or use the backplate needle with. Brodak .40 states that it fits la46 but it is .157 in diameter and my OS parts measure .137. If anyone has original size OS needle valves to sell I would be interested in a few or if anyone makes one I would like to purchase a few. I have used a couple of Randy's and they work great but I would like to get away from drilling the crankcase. Thanks, Ray