Yes if you are going to put it together yourself you will need some reference books and tools. A factory manual for your '73 will be useful for not just the car, but engine and trans questions. And then a performance engine book of some sort, I like the factory published Chrysler Racing Manuals or Mopar Performance by SA Design.
As for tools you'll need a dial indicator for a variety things, but perhaps most importantly to dial in that aftermarket cam. You can buy a kit with a wheel, indicator and stuff from places like Summit. If your short block is presently together you can simply measure your piston to deck by bolting a home made stop, (a piece of bar stock with a hole for a head bolt and tapped hole for a adjustable bolt to use as stop), find TDC and just measure the piston to deck in line with the piston pin with an assortment of feeler gauges. Then you can calculate using the on-line program on the Summit site or Wallace to get your approximate compression ratio with the camber CC specs from the heads you expect to purchase so you can better order a cam that will work well.
