Does anyone know the thread size on a 4th gen vtec lude for the hole on the driver side of the fuel rail. there is one big bolt and then a smaller one tapped inside the bigger bolt. What is the thread specification of that bolt. I know that it's a 17mm head, but the thread; I'm clueless! I need to get the converter from autometer so I can attach my 1/8 npt thread to it and then to the fuel rail! Thanks