I am aware a few members strongly dislike these gauges, but whilst I have the manifold off and a NOS gauge I'd like to fit it.
My question is this: is the point on the following pictures suitable for drilling and tapping for the take-off? It looks ready-made for it and there is nothing under this point inside the manifold.
At least modern cars HAVE revcounters - why, I don't know...... I also don't know of any series production car that was ever fitted with a useless vacuum gauge..........