it seems as though the engine or at least the crankcases have been replaced at some point which in my view reduces the value,to get top dollar either here in uk or the us the numbers should match the model(im not talking engine and frame numbers here because i beleive most bsa,s engine and frame numbers did,nt match)gp carbs and 190 front brake are good selling points but in reality they were not the best,, bsa had problems with gp carbs fitted to the spitfire,and the 190 front brake is not as good as the single sided 8 ins one , in my opinion the A65LC (lightning clubman)is the more desireable bike,i,ll go for 3.500 to 4.000 us dollars on this spitfire