I am looking at buy some MT Bias ply street slicks (26 X 10.50-15LT) which require tubes. I currently have tubeless drag radials that are worn out but I have a 4 speed car so am switching to bias ply. The bias ply tubes require a 5/8" valve stem hole which is larger than stock. Any way around this or do I need to just drill out the VS holes on my Rallye wheels?