low idle revs

[thomas morris]

Have just bought a t350, i'm chuffed with the performance and the sound but the idle speed of the engine is about 550 revs which must be too low the car is cutting out regular when idling, also think I can hear a top end knock so wondering if it may be due a rebuild, can anyone shed any light on this (is there normally warning signs before the engine goes?)
kind regards
Tom

[Whitey]

Don't drive it. Get it on a low loader to your nearest TVR dealer/specialist asap.

And then speak to whoever sold it to you.