Paul,

Is there enough residual heat around the intake manifold to prevent induction
ice? Could I go without carbureator heat?

Lewis.

If it is a carb the FAA won't sign it off without carb heat.
Fuel injection does not require heating the intake manifold.

Paul Lamar
                   

Would they consider a throttle body injector to be carburettor or injected?
Lewis.


I think they might consider that a carb. It depends on the individual inspector. It has the potential to ice up so I would install carb heat to be on the safe side.

Paul Lamar