Still not starting when warm

3.5 V8 twin carb
Starts first time when cold. Then a big struggle when warm. Turns over and sounds like trying to start eventually catches on and fires up.
Have changed
starter motor (was working intermitantly)
coil
spark plugs
rotor arm.
New dissy cap and ht leads last year.
Any ideas please

CTS( coolant temp sensor)

CTS on a carburetted one?

If dizzy related:
Are the dizzy cap and rotor arm genuine ones? It might be sensitive if not.
Points or electrical dizzy? If points, adjust gaps or renew and adjust.

Fuel related:
Could be getting too much fuel for some reason.
Clean and adjust carbs, check all diaphragms and springs.