[s-cars] Stumble at 4000 rpm

[audijim at comcast.net]

I have a little problem that some of you may know what it is right from the start. If I am cruising at 3000 rpm and then give it full throttle, it will fall on it's face at 4000 rpm until I lift off a little, then when I give it full throttle again, it will power through 4000 rpm again like normal. Idle/Full throttle switch bad? Fuel problem? It sounds like it bogged down until I lift off.... I have zero time to T/S this so I thought I would ask the list.

Thanks guys,

Jim