GMC Jimmy Camshaft Camshaft Sensor Replace/Remove

My Truck Has A 4.3 V6 Vin W It Has A Rebuilt Motor In It. The Motor Will Start Up Runs Good But Stalls 5 Mins. Later. It Will Start Back...

Fuel Pressure Is Perfect. Has Brand New Pump Filter And Spider Injection. Timing Light Indicates I Am Losing Spark. I've Changed...

While Driving The Brake Light Will Come On And The Engine Seems To Start Misfiring, Cutting Out And Will Die At Times While Driving. All Of...