No Throttle Power

[Edgar Lowe]

Hi
My Big7 has had an engine rebuild completed by experts in the field (new valves, valve guides, rings, bearings, timing chain etc). When rebuilt the car still wouldn't take the throttle. She would idle perfectly but wouldn't take the throttle unless the choke was on. I had the carburettor refurbished by one of our cherished suppliers but there is no improvement. Can someone please help. many thanks
P J

Hi
It looks it's a fuel starvation which would allow it to run ok at low revs but not under heavy load, I had the same problem with a straight eight engine. Check there is nothing blocking the main jet in the carburettor.