Parked up for winter(wasnt running nice last year) now wont start just backfires a lot. Tried new coil, plugs points, cap, arm,condenser,added earth from battery to dizzy body, moved dizzy around slightly. Turns over but just wont fire.
Fit a new distributor (or clean and check) it sounds like your timing advance weights are sticking or screwed.
Also check that your vacuum advance works.