Hi Tim,
I've stored a few cars in the past.

To get them running I usually

-

1.

fully charge the battery or get pair of jump leads ready.

2.

remove spark plugs

& spin the engine to build up oil pressure under no load.

Check for spark with a plug connected

& earthed at the same time.

If no spark, then start checking ignition side

- connections, clean, etc.

3.

Replace the petrol with fresh stuff if it's been more than a couple of years since it last run
4.

on carb engines I spray some of the easy-start spray into the carb intake.

It smells like ether and is more volatile than petrol.

It's usually in Halfords, etc, but don't confuse it with wet-start or wd40-type things.

You could try removing the air filter and spraying in the intake.

Incidentally, that will usually get it running long enough to run on old petrol although it might not run well.

5.

If that fails then I check for fuel delivery.

Modern petrol does tend to evapourate and leave residues which can block carbs

& I suppose injectors.

It certainly clogs the accelerator pumps in webers.

after that

- check the clutch hasn't stuck

! If it has I usually warm up the engine for a while, depress the clutch with a stick

& leave overnight.

If that doesn't do it, get the rear wheels on axle stands

& free, warm up and then run the engine in gear, depress clutch

& brake at the same time.

That always works, and is safer than just driving the car until it frees up.
