Greetings. Just bought a '76 TR6 w/factory OD. I am still in Iraq....haven't even seen it firsthand yet! Can someone fill me in on some of the most common performance upgrades are for late model TR's? I am not concerned about "original" status as mine already has SPAX rear shock conversion among other smaller things. What are the TR6 "achilles heels" that necessitate modern upgrades? THX