Well here it is 2001 Diablo V-12 with twin screws(superchargers) Has 4,000 miles and at idle it surges up and down,between 1100 and 1400 rpm,I looked for air leaks,no leaks found,I did however adjust the tpc sensor on the right side throttle body and also lower the idle by means of idle screws on each throttle body(evenly,1/2 turn out each)this all did help but it still seams to idle high(1100 rpm)is this the normal rpm @ idle,note the surging did stop for now???any help would be great,also were can I find a good shop manual for the Diablo.Thanks Austin