Originally Posted by red58
the gauge should be hooked to the same port the original was, on the side of the block, where one line of the filter is, using a T fitting, can't think where on the head you'd get a good oil pressure reading

Bill
An oil pressure line could be attached to the head on the distributor side (a cob-job installation): into the hole on the upper middle of the head - the hole that would normally have a square-headed plug in it (a hole into the oil-feeder journal that goes up to the rocker arms assembly).

Most likely this would not be a "good reading", being near the "end of the line" of the lubrication system.