[RichardJ]

I usually pull the engine with the intake and exhaust off. I use one of the rear intake studs on the left rear and there is a pad on the right front with two bolt holes.

The heads usually had two short locating pins, one on each end, two studs, one in the third hole in from each end and the rest were just bolts.
I have pulled the pins and installed studs in every hole. Eight studs in all, instead of just the original two. It makes it a lot easier to replace the gasket, intake and exhaust at the same time.