You MUST use oil with high levels of ZDDP (zinc) to keep the cam from going round . You can either use regular oil and a zinc supplement or purchase high zinc oil . Either way is fine . Also you must put a lead substitute in the gas to keep the exhaust seats from sinking into the head or have the head converted to unleaded by installing hardened valve seats . third : the regular fuel is crap . Higher octane is needed (91octane +) to hold back detonation , especially going up hills . Old cars are fun aren't they .
