Dyno tuning is cheap in what you can accomplish fast. fuel curve and ignition curve is worth the first 3 pulls.Best bet is a mustang dyno over a dynajet
show up with new plugs already in the engine,wires,cap,rotor as required.
spare carb parts or ask if they have a jet board you can buy the tuner replacement jets
powervalves/and air bleeds. Make sure your rear tires are in good shape and speed rated if required.ask the tech what else you can do before he straps down your car.
Tune for torque and keep the air fuel ratio street friendly