I am getting ready to rebuild my TR4A motor and this will be new for me. I will be posting some questions related to that soon. In thinking of a rebuild a lot of things go thru your head that maybe you should/could or want to do. So I will start off with this question: Can anybody comment on the "street" cam that is available as to whether it is a worthwhile expenditure? I will mention that I do not intend to do anything else in particular to juice the engine and also mention that I have the HVDA 5-speed conversion. I do not autocross, race or anything but do live in a hilly/mountain area which might benefit from the extra torque that cam is supposed to provide. I have read that the original cam is considered quite good. Opinions please?