Hi i have had aa valve let go on my B16A,teg cams,spoon manifold,few other bits,mapped by Craig at Gotboost using crome,made 191bhp 121Lb,but i had the head of a valve come off,the end.
I then went B16B,HAD IT remapped many parts from the old engine,207bhp,all very good but a valve let go,but...