Engine Back Fired In Carburetor – Timing Chain Broken?
My question is, is there an easy way to decide if a 1974 F250 390 motor needs a new timing chain or not? I’ve replaced the battery, battery cables, solenoid, spark plugs, wires, distributor cap, and starter. All it does if backfire through the carburetor. If you turn the distributor cap in any direction, it dies. Can you please help me?