The engine only has 4,500 original miles with no mods; that's the reason I said nothing too crazy.
In that case, I'd do the spring cleaning as outlined and:
(1)
Change out the fuel pump to a Walbro 340M or equivalent sold by Full Throttle or Cottons Performance. 4500 miles or not, it needs fuel plus the old fuel sock is likely shot.
(2) Hot-wire kit sold by the same vendors. Plug N Play, very factory looking;
a must have with the bigger pump noted in (#1).
(3) Adjustable fuel regulator of your choice; you will need a hand held fuel pressure gauge to set it at 43 psi with the vacuum line removed.
(4) Change out the fuel filter on the driver's side frame rail by the rear tire-- a must!!
(5) Change the plugs to AC Delco R43TS spark plugs, gap at 0.035"; these are one range colder.
(6) Ohm the coil pack; it's best to do this after the coil pack is warm.
(7) Set the TPS sensor at 0.42 to 0.48 volts at idle (throttle closed) and 4.60 to 4.72 volts at WOT. Be sure to PULL THE FRONT FLOOR MAT when you do this, otherwise the thickness of the floormat will prevent you from mashing the accelerator all the way to set the WOT setting accurately. I find it amazing how many people don't think of this!!
87_WE2: If the car is that pristine you will want to replace the non-adustable wastegate actuator with an adjustable actuator which are also available from the vendors previously mentioned.
T-TYPE 86: On your vehicle I would be inclined to pull the valve covers to (a) make sure all the valvetrain is moving correctly (i.e., no flat cam lobes) and (b) pull off a valvespring or two and check its seat pressure. Weak valvesprings won't allow the car to rev; a good source of higher performance replacements is Bean's Crankshaft in El Cajon, CA, Phone (619) 449-1736; Contact name: Jesse; the part number is 160-1144; it was about $40 shipped the last time I bought a set.